Secret skill

Secret or hidden skills are skills that a Sim can gain with practice but will not appear in the interface. Cleaning is a secret skill in The Sims. There are several secret skills in The Sims 2, The Sims 3, and The Sims 4.
==The Sims==
====Cleaning====
:In The Sims, Cleaning is a hidden skill that's mostly used by the maid, community lot janitors, Servo and Bonehilda. All playable Sims and Townies have Cleaning skill, even if it's zero. However, the skill doesn't appear in the Control Panel. It cannot be changed or improved within the game, unless Sims use an object that has been hacked to affect Cleaning. Some third-party character-editing programs may allow the player to edit a Sim's Cleaning skill.
==The Sims 2==
====Study====
:If a household member who is a teen or older offers or is asked to help with a child's or teen's homework, that Sim will be able to learn how to study. This usually takes one homework session, and the child/teen being helped and the helper will each get a memory when it is completed. Then, the child or teen Sim will be able to complete homework much quicker. Young adults who have not learned this skill can learn it if they are given help with college assignments, but the skill does not appear to affect the time needed to complete assignments.
====Chess====
:Sims who play chess regularly will have more chances of winning against other Sims
====Yoga====
:Sims with three or more body skill points can perform yoga. Yoga skill is improved along with body skill, and is not based on the amount of yoga performed. A higher yoga skill allows Sims to perform more advanced yoga poses and reduces the rate of mistakes.
====Painting====
:The more paintings a Sim paints, the more they will be paid for them — even if (especially if) they have already maxed their Creativity.
====Writing====
:One Writing skill point is gained whenever a Sim completes a novel. Like the Painting skill, the higher the Writing skill, the more a Sim's novels will sell for.
====Meditation====
:Meditation is a skill that Sims from teens on up acquire if they have three or more Logic points and eight or less Playful. (Note that if a Sim's Playful score is exactly 8.00, they will be able to meditate.) While a Sim meditates, their motives and aspiration bar do not decay, though hobby enthusiasm still does. That meditation "freezes" motive and aspiration decay makes it useful for "saving" a Platinum mood for later, such as for a promotion. It can also be useful for sick Sims, pregnant Sims, and Sims who wake up in the middle of the night. If a Sim meditates for a certain amount of time, they can learn to teleport. Meditation takes about 10 minutes to begin and about 15 minutes to stop. Meditation takes longer to stop if the Sim is levitating.
====Dancing====
:This is a hidden skill that involves Sims getting better at the activity of dancing. Sims who are at the bottom end of the skill have very entertaining actions and moves. Teen Sims that achieve a high level in the dancing skill can qualify for the §1000 Tsang Footwork Award. A Sim with a relatively good Dancing skill has access to the social "Entertain. . . Bust a Move", which is available to use on Sims at a relatively low Lifetime Relationship of 20-30 and increases lifetime relationship by one or two points.
====Pool====
:A skill learned by playing pool/billiards. Teens can receive the Phelps-Wilsonoff Billiards Prize of §1000 for having a high pool skill. The better a Sim is at the Pool skill, the more likely they are to succeed at Hustling pool.
====Tai Chi====
:Sim can learn Tai Chi in Takemizu Village. Most locals there have already learned Tai Chi. Doing Tai Chi will drain hunger but fill up energy. When mastered, doing Tai Chi will build up Body skill. Tai Chi increases Fitness enthusiasm.
====Drafting====
:The more blueprints a Sim drafts on the SIM series Drafting Table, the more they will be worth.
==The Sims 3==
====Blocks====
:This skill goes up to level 3 and only children can have this skill. When they age into a teen, they will start their Handiness skill at the same level as the skill level they acquired. Children gain this skill by playing with the activity table.
====Chess====
:Sims can only build this skill by playing chess on the chess table. Playing chess on the computer does not give a Sim chess experience. The skill goes up to level 10, with that level determining whether a Sim is more likely to win or lose, and what rank they hold in the ranked chess tournament. This skill is essential for completing the Chess Legend Lifetime Wish.
====Collecting====
:This skill goes up to level 10, with Sims having a better chance when capturing a bug or insect and finding a gem or rock as the level increases.
====Dancing====
:This skill goes up to level 3. Sims can raise this skill by dancing alone when music is on, but not by dancing with someone else. The level a Sim has in this skill determines how well they dance.
:Another Dancing skill was added as part of premium content from The Sims 3 Store. Unlike this skill, the Dancing skill from the Store is visible and appears in the skill journal. Both Dancing skills are separate skills, which means Sims who have learned the hidden Dancing skill must learn the Store skill from the beginning.
====Hacking====
:Sims with the Computer Whiz trait, or who work as an Investigator, can hack on the computer and earn simoleons. Hacking goes up to a level of 10, with the level determining how much money a Sim makes.
====Homework====
:A teen or child Sim can do Homework. Regularly doing homework increases school performance. This skill goes up to level 10.
====Mooch====
:A Sim with the Mooch trait can mooch off of their neighbors or other Sims. This skill goes up to a level of 10. Sims with the Mooch Trait can beg for money and food from Sims around them. The higher the Sim's Mooching skill, the more likely they will be able to mooch large quantities of money. It is harder to mooch from Sims with the Frugal trait. Children can only achieve level 4, and teenagers can only reach level 6.
====Video game====
:A Sim can play video games on a gaming console. This skill does not apply to computer games or VR goggles. Sims can play against each other. The skill goes up to level 10, but only determines whether a Sim is likely to win or lose when playing against other Sims. The level of this skill affects the animations which are used, but there is no other effect.
====Air Guitar====
:The Sim will randomly play air guitar (playing guitar without guitar in hands) and get some fun from it. This skill goes up to level 10. Once a Sim reaches the top of Music career they can do this autonomously, due to the Rocker hidden trait.
====Foosball====
:A Sim or Sims can raise this skill by playing on the Foosball Table. The foosball skill goes up to level 10, but only determines whether a Sim is likely to win or lose when playing against other Sims. The level of this skill affects the animations which are used, but there is no other effect.
====Child Cooking====
:Only child Sims can get this skill. This skill goes up to level 3 and when the child ages into a teen, they will start their Cooking skill at the same level as the skill level they acquired.
When reaching skill level	New skills
2 	
*Bake pies.
*Bake brownies.
3 	
*Bake cakes.
*Bake cupcakes.
====Diving====
:Prior to patch 42, this skill was only available in World Adventures. Sims can increase their skill level by using the dive wells or diving board. Originally, the skill went up to level 5, but with patch 42, it was changed to 2. This caused Sims who already surpassed level 2 to reset whenever they tried to use the diving board in the pool. This glitch was fixed in patch 50.
===Toddler skills===
====Learn to Walk====
:This skill only has one level and only toddlers can have this skill. A teen or older can teach a toddler how to walk. After this hidden skill is learned the toddler can walk around instead of crawl.
====Potty Training====
:This skill only has one level and only toddlers can have this skill. A teen or older can teach a toddler how to use the potty. After this hidden skill is learned the toddler can use the potty by themselves. A toddler can learn to use the potty by being repeatedly trained by a teen or older until they have learned the skill.
====Learn to Talk====
:This skill only has one level and only toddlers can have this skill. A teen or older can teach a toddler how to talk. After this hidden skill is learned, Sims will be able to chat with the toddler. Two toddlers who have both learned to talk can talk with each other when playing at the blocks table or dollhouse, and gradually gain relationship with each other.
====Peg Box====
:This skill goes up to level 3 and only toddlers can have this skill. When the toddler ages into a child, they will start their logic skill at the same level as the skill level they acquired.
====Xylophone====
:This skill goes up to level 3 and only toddlers can have this skill. When they age into a teen, they will start their Guitar skill at the same level as the skill level they acquired. If the Late Night expansion pack is installed, then the Bass, Piano, and Drum skills will also be raised. In addition, if Into the Future is installed, the Laser Rhythm-a-con skill will be raised.
===World Adventures===
====Rubble Clearing====
:Sims can progress at clearing rubble in tombs. As their level increases, they are able to clear rubble quicker.
====Snake charming====
:The more a Sim charms snakes, the better they get at it. Eventually, at later levels, the Sim can kiss the snake or make it go into other Sims' clothes. This skill goes up to level 10.
===Ambitions===
====Consignment====
:As Sims sell objects in the consignment store their consignment skill also increases, allowing them to sell objects for greater returns. This skill goes up to level 10.
====Tattooing====
:Each time a Sim gives another a tattoo, their tattooing skill increases. It goes up to Level 10. Only Young Adults and above can get this skill.
====Trampoline====
:This skill increases each time a Sim uses the trampoline. It goes up to Level 10, and is available to all Sims who are at least children.
====Gnubb====
:This skill is used whenever Sims use the Sim Gnubb toy. This skill goes up to level 10, and is available to all Sims who are at least children.
====Styling====
:This skill increases every time a stylist gives a makeover, or through the use of the drafting table. It goes up to Level 10 and is only available to Young Adults and above.
===Late Night===
====Arcade Machine====
:Sims will get better when playing arcade machines, arcade tables, whack-a-supernatural, and for some reason computer games. This skill goes up to level 10. Higher level Sims are more likely to win games.
====Bubble Blowing====
:The bubbles become figures in various shapes when a Sim uses the Bubbluscious Bubble Bar. This skill goes up to level 10.
====Darts====
:Sims can play darts using dartboards. This skill goes up to level 10. Higher level Sims are more likely to win games.
====Shuffleboard====
:Sims can level up this skill by using the shuffleboard. This skill goes up to level 3, with higher level Sims being more likely to win games.
====Club Dancing====
:Sims gain this skill from dancing in clubs. This skill goes up to level 3, and is available to children and older.
====Rock Band====
:Sims automatically earn this skill once they form band or be asked to join a band. This skill controls whether Sims can receive band skill opportunities, but merely possessing this skill without having a real band will not let Sims to receive such opportunities. This skill only goes up to level 1.
===The Sims 3: Generations===
====Sandbox====
:Sims build better sandcastles over time. This skill goes up to level 4. When the child ages into a teen, they will start their Sculpting skill at the same level as the skill level they acquired. It is unclear to which extent the skill was affected by Patch 55 and/or Island Paradise, which allowed older Sims to build sandcastles on sand terrain too.
====Driving====
:Teens can't drive a car unless an older Sim has taught them to. This skill goes up to level 3, and teens who complete the skill will be sent a framed reward certificate.
====Hopscotch====
:Sims get better at playing hopscotch as their skill increases. This skill goes up to level 10. Sims will simultaneously also gain the Athletic skill when using a hopscotch mat.
====Child Athletic====
:Beginning with Generations, the Athletic skill is no longer available to children. It is replaced by the Child Athletic secret skill, which is earned when children work out. This skill goes up to level 3, and when the child ages into a teen, their Athletic skill will start at the same skill level.
====Child Gardening====
:Beginning with Generations, the Gardening skill is no longer available to children. It is replaced by the Child Gardening secret skill. This skill goes up to level 3, and when the child ages into a teen, their Gardening skill will start at the same skill level.
====Child Guitar====
:Only children can get this skill, This skill goes up to level 3, and when the child ages into a teen, they will start their Guitar skill at the same level as the skill level they acquired. This skill may only be acquired randomly if the child is sent to LeFromage Art boarding school.
====Child Bass====
:Only children can get this skill. This skill goes up to level 3, and when the child ages into a teen, they will start their Bass skill at the same level as the skill level they acquired. This skill may only be acquired randomly if the child is sent to LeFromage Art boarding school.
====Child Drum====
:Only children can get this skill. This skill goes up to level 3, and when the child ages into a teen, they will start their Drum skill at the same level as the skill level they acquired. This skill may only be acquired randomly if the child is sent to LeFromage Art boarding school.
====Child Piano====
:Only children can get this skill. This skill goes up to level 3, and when the child ages into a teen, they will start their Piano skill at the same level as the skill level they acquired. This skill may only be acquired randomly if the child is sent to LeFromage Art boarding school.
====Ballet====
:Only children can get this skill. This skill goes up to level 3 and is unlocked from afterschool activity. This skill unlocks several ballet move abilities. Sims can also learn this hidden skill by practicing ballet with the ballet barre from The Sims 3 Store. When the child ages into a teen, they will start their Dancing hidden skill at the same level as the skill level they acquired.
====Scouting====
:Only children can get this skill. This skill goes up to level 3 and is unlocked from afterschool activity. This skill unlocks the Salute hidden trait. When the child ages into a teen, they will start their Gardening skill at the same level as the skill level they acquired.
===Pets===
====Wildlife====
:The Wildlife hidden skill determines whether befriending interactions with minor pets are successful. This skill goes up to level 6. Wild animals are more likely to accept interactions to Sims with a greater wildlife skill.
===Showtime===
====Golfing====
:This skill goes up to level 10. This skill is available to teens and older. Sims gain this skill from playing golf, on top of also slowly gaining the Athletic skill at the same time.
====Dominoes====
:This skill goes up to level 10. This skill is available to children and older. The higher the skill, the higher the chance that the Sim will win.
====Karaoke====
:This skill goes up to level 3. This skill is available to children and older, and is gained from singing karaoke. It does not appear to be relevant to the Singer career that was also introduced in Showtime.
====Pool====
:This skill goes up to level 10. Sims gain this skill by playing pool. The higher the skill, the higher the chance that the Sim will win.
====DJ Turntable====
:This skill goes up to level 5. Sims gain this skill from using the DJ booth. Note that the skill can take very long to increase, compared to most other skills in the game.
When reaching skill level	New skills
1 	
*Unlocks the ability to receive DJ gig opportunities at big parks.
*Can perform at any DJ booth for tips.
*While staffing a booth, the Sim can "Make It Groove".
2 	
*Unlocks the ability to receive DJ gig opportunities at coffeehouses.
*Can pick "Drum N Bass" as a genre.
3 	
*Unlocks the ability to receive DJ gig opportunities at live show venues.
4 	
*Unlocks the ability to receive DJ gig opportunities at private venues.
? (3, 4 or 5) 	
*Can pick "Niche" as a genre.
====Magic====
:This skill goes up to level 10. Sims gain a level every time they are promoted in the Magician profession. It changes what types of magic acts the Sim can do. For unclear reasons, the skill instantly maxes out to level 10 if a non-genie Sim becomes a genie by any means, for instance by elixirs.
====Entertainer====
:This skill goes up to level 10. Sims gain a level every time they are promoted in the Acrobat profession. It changes what stunts the Sim can do.
====Performance Artist====
:This skill goes up to level 10. Sims gain a level every time they are promoted in the Singer profession. It changes what songs the Sim can sing, and also makes them better at karaoke.
===Supernatural===
====Lycanthropy====
:Lycanthropy is a hidden skill that werewolves only can have and the skill is unique to them. As they level up this skill, they unlock new interactions and benefits for themselves. This skill goes up to level 10. It can be leveled up by going on hunts on a lot, and by howling at the moon.
When reaching skill level	New skills
2 	If in werewolf form, can successfully hunt collectibles around town.
3 	If in werewolf form, can approach any unsuspecting normal Sims and Cursed Bite them. If a werewolf has the Alpha Wolf lifetime reward, their Cursed Bite cannot be avoided; without that reward, the targeted Sim may sometimes instead whack the werewolf with a newspaper. The Sim who got bitten will transform into a werewolf two days later.
6 	If in werewolf form, can Hunt For specific collectibles such as metals, gems, insects, etc. This is very useful to Sims who need certain collectables for displaying them or using them as ingredients to mix elixirs.
8 	Can control when and where they transform. They will be less likely to transform when angered or mood dropped drastically.
10 	They are declared the "best of their kind". They can find up to four collectables per solo hunt. Their bites and howls during night time will be less likely to fail.
====Broom Riding====
:A skill that increases when your Sim does stunts in the Broom Arena, or when using a broomstick as the default car road vehicle. There are 10 skill levels. The higher this skill the more stunts they do, and possibly more tips.
When reaching skill level	New skills
5 	
*Can "Stunt Ride for Tips" at a Zoomsweeper Broom Arena.
====Spellcasting====
At level 0, Witches may cast the Conjure Apple spell. "Conjure Apple" allow Witches to create an apple of random quality, as well as the chance to create a poison apple.
When reaching skill level	New skills
1 	
*Cast the spell "Conversion". Allows to transfigure a collectible into a random collectible of random quality (Often the only good use for Poisoned Apples in their inventories).
*Cast the spell "Good Luck Charm", giving the target Sim "Feeling Lucky" moodlet, which gives +5 to mood and lasts for 24 hours (but which can fail and give "Feeling Unlucky" instead).
2 	
*Cast the spell "Fire Blast". Casting it on a terrain will cause a fire (One of few ways to start a spreadable fire on a public lot), unless it is on a lot owned by a Sim with the Fireproof Household lifetime reward. Casting it on another Sim will make them singed.
*Cast the spell "Ice Blast". Casting it on an appliance will make said appliance break, but casting it on a fire will put the fire out. Casting it on another Sim will usually make them shiver heavily, but can occasionally freeze them into solid ice (in a standing pose similar to an ice sculpture, and not laying on the ground as would be the life-threatening case in Seasons).
3 	
*Cast the spell "Upgrade Appliance". Casting it allows witches to upgrade any appliance without the need of required Handiness skill, and considerably faster than regular upgrades as well.
4 	
*Cast the spell "Love Charm".
*Cast the spell "Toadification Curse".
5 	
*Cast the spell "Haunting Curse", which can cause a targeted Sim to be haunted by a ghost. The experience results in the Sim having the "Scared" and "Haunted" moodlets, which grant a -25 mood for 3 hours and a -20 mood for 2 days respectively.
6 	
*Cast the spells "Hunger/Thirst Charm", "Bladder Charm", and "Hygiene Charm". Despite the names, the charms can replenish the corresponding needs bar of either the caster or the targeted Sim.
7 	
*Cast the spells "Hunger/Thirst Curse", the "Bladder Curse", and "Hygiene Curse". All three deplete the corresponding needs bar of the targeted Sim.
8 	
*Cast the spell "Sunlight Charm". Casting it grants the targeted Sim a positive moodlet whilst ridding the Sim of negative moodlets; it can also be used to ward off vampires and cure zombies.
*Cast the spell "Pestilence Curse". Casting it makes the target Sim ill in a way distinctly different from nausea and colds.
9 	
*Cast the spell "Restoration Ritual", which cleans up the lot it is used in, comparable to a default genie ability.
10 	
*Cast the spell "Reanimation Ritual", which can revive dead Sims as zombies.
====Fairy Magic====
:A hidden skill for fairies that determine what magic spells they can use and how likely is is to succeed. The skill is much easier to max out than most other skills in The Sims 3 (be it normal or hidden skills), as a fairy can be set to excert an aura to constantly gain the skill, wait 6 hours when the magic power has run out, and repeat the process until reaching level 10.
:Fairies automatically have access to the self-interaction "I Can Fly", which boosts the Fun motive. They can cast the spells "Hot Head" and "Chattering Teeth". Finally, they can project the Aura of Soothing which grants nearby Sims a +20 moodlet.
When reaching skill level	New skills
1 	
*Project the "Aura of Creativity" which enhances performance in Painting, Writing, and instrumental skills (incl. Late Night ones) for nearby Sims within circa 8sq.
*Cast the spell "Flight of Felicity" which grants another Sim the temporary ability to fly like a fairy.
2 	
*Can Fairy Trap toilets and showers, which works much the same way as the traps teens can set with The Sims 3: Generations.
3 	
*"Fairy Repair" broken objects, which makes them immune to electrocution from failed repairs.
*Project the "Aura of Body and Mind", which enhances performance in the Athletic, Charisma and Logic skills for nearby Sims.
4 	
*Cast the spell "Tummy Twister".
*Fairy Trap trash cans.
5 	
*Cast the "Bloom" spell on a garden plant to advance its growth stage. This spell will make mature plants ready for harvest and may even revive a dead plant.
6 	
*Cast the spell "Skivvies".
*Fairy Trap sofas and loveseats.
7 	
*Cast the spell "Gold and Toads"
8 	
*Fairy trap mailboxes.
9 	
*Fairy Trap LLAMAs.
10 	
*Cast the spell "Inner Beauty".
===Seasons===
All 4 Seasons secret skills can also be instantly maxed out by purchasing the All Weather Champion lifetime reward for 10,000 lifetime happiness points.
====Skating====
:Playing ice or roller skating increases the Skating hidden skill. As Sims advance this skill, the interactions to do tricks on a skating rink are unlocked. Sims also get better at skating with higher skill. This skill goes up to level 6, and children and older can learn this skill. Ghosts, mummies, SimBots, vampires, imaginary friends in their toy form, genies, fairies, werewolves in their wolf form, and zombies cannot learn skating skill, as they will hover when using the skating rink or run around instead.
====Snowboarding====
:Sims learn this skill by playing snowboard on the half-pipe. Sims get better at snowboarding as they master this skill. The failure chance gets reduced from 30%, 20%, and 5% for respective skill level. Children and older can learn this skill. This skill goes up to level 3.
====Horseshoes====
:Sims learn this skill by playing horseshoes court. They will have higher chance at winning against other Sims with higher level. Children and older can learn this skill. This skill goes up to level 10.
====Ball Fighting====
:Ball Fighting is a combined skill for snowball and water balloon fighting. Children and older can learn this skill by playing the activity on the lot or with the court. With higher skills, they might be able to dodge snowballs and water balloons and aim at Sims better. This skill goes up to level 3.
===University Life===
====Nerd Influence====
:Nerd social group influence is a hidden skill Sims gain as they do nerd activities. Sims earn more influence by doing activities such as reading comic books, playing games, or doing scientific research. There are 10 skill points from this hidden skill, and as Sims gain more skill points, they will receive certain perks.
:At Level 2, nerds will receive a video game console and ability to play game online.
:At level 4, nerds can issue a trivia challenge, which appear to work similarly to the time-specific trivia contests at the Vault of Antiquity.
:At level 6, nerds can mind-meld with other Sims.
:At level 8, nerds can pick an additional trait.
:At level 10, nerds will receive a Video Game Developer career offer; except if it's a Plumbot without the Office Drone trait chip, in which case the offer won't show up.
====Rebel Influence====
:Rebel social group influence is a hidden skill Sims gain as they do rebellious activities. Sims earn more influence by doing activities such as protesting, burning herbs, or tagging walls. There are 10 skill points from this hidden skill, and as Sims gain more skill points, they will receive certain perks.
:At Level 2, rebels will receive a street art bag, a megaphone, and the ability to sell test answers at the college.
:At level 4, rebels can get away from cheating at university more easily, start a hunger strike, and say what's wrong with the world with the podium.
:At level 6, rebels unlock an exclusive smartphone skin, start a rowdy protest, and show off new gizmo to other Sims.
:At level 8, rebels can pick an additional trait.
:At level 10, rebels will receive Art Appraiser career offer; except if it's a Plumbot without the Office Drone trait chip, in which case the offer won't show up.
====Jock Influence====
:Jock social group influence is a hidden skill Sims gain as they do jock activities. Sims earn more influence by doing activities such as playing collegiate sports (Sims University only), playing with flying disc or soccer, and bowling. There are 10 skill points from this hidden skill, and as Sims gain more skill points, they will receive certain perks.
When reaching skill level	New skills
2 	
*Perform a school cheer.
*Throw a juice kegger party.
4 	
*Can take self-portraits.
*Throw a bonfire party.
6 	
*Throw a party for charity.
8 	
*Pick an additional trait.
10 	
*Receive a Sports Agent career offer; except if it's a Plumbot without the Office Drone trait chip, in which case the offer won't show up.
====Ping Pong====
:Sims learn this skill by playing ping pong or juice pong with the ping pong table. This skill goes up to level 5, and teens and older can learn this skill. As Sims get more skilled in ping pong, they can do a Smash hit while playing a game of ping pong.
====Bowling====
:Sims learn this skill by bowling at a bowling lane. Children and older can learn this skill. This skill goes up to level 5.
===Island Paradise===
====Firewalking====
This skill goes up to level 2. Sims build this skill as they firewalk on the firewalking pit. The higher the skill, the more likely Sims will succeed at the pit in a higher difficulty.
====Waterskiing====
This skill goes up to level 10. Sims learn this skill by waterskiing on the ocean. Sims can waterski in formal wear when they reach level 8 of this skill.
====Windsurfing====
This skill goes up to level 10. Sims learn this skill by windsurfing with the windsurf board that can be bought in Buy mode. As Sims get more skilled in this hidden skill, they will have higher chance at making tricks while windsurfing and performing it successfully.
===Into the Future===
====Bug Eating====
This skill goes up to level 3. Children and older can learn this skill. Getting from level 0→1 can only be done in the Dystopian Future of Oasis Landing.
==The Sims 4==
All skills listed here go up to level 5.
===Get to Work===
====Work Ethic====
This retail skill helps employees stay focused on their assigned task.
====Sales====
This retail skill helps talking with customers and ringing them up to sell a product or item.
====Maintenance====
This retail skill helps cleaning up the store and restock items that have been sold out.
===Fitness Stuff===
====Rock Climbing====
This skill unlocks new interactions on the climbing wall, like Vertical Challenge (level 1) and Climb Overhang (level 2). More challenge options are unlocked by completing previous ones. This skill can also be gained by climbing up cliffs in Mt. Komorebi.
===Seasons===
====Skating====
This skill unlocks the ability to practice tricks and do routines on skating rinks once they reach level 3.
===City Living===
====Spice Hound====
Sims will react negatively at first for eating spicy food, but after eating around 5-6 spicy food meals, they’ll unlock a trait with the same name as the secret skill and will feel comfortable eating any type of spicy food.
====Chopstick Savvy====
Sims will get embarrassed at first for not knowing how to use chopsticks properly, but after 5-6 meals that require chopsticks, they’ll unlock a trait with the same name as this secret skill and feel confident using them. Becoming Chopstick Savvy is also possible in The Sims 4: Snowy Escape and The Sims 4: For Rent.
===Discover University===
====Juice Pong====
There's nothing more fun than a game of juice pong!
====Ping Pong====
Ping Pong is quite a fun sport that takes a bit of skill to master.
==Trivia==
*The xylophone and all child music skills are counted separately. For example, a Sim who maximizes the xylophone and all child music skills, will start at level 3 on guitar, bass, piano, and drum when they become a teen.
*At least 2 gamemods exist to make hidden skills in The Sims 3 visible:
**Hidden Skills Unhidden by gobot101.
**Unhide Hidden Skills by Dandelion Sprout.
==References==
fr:Compétence cachée
nl:Verborgen vaardigheden
ru:Тайный навык
pl:Ukryte umiejętności
es:Habilidades ocultas
 Secret skills