Try not to let your nerves overcome you before you speak. Whenever you start to feel nervous, start thinking about your talking points instead of thinking about what could go wrong. Then, refocus your mind back on your material. Accept that you will make some mistakes. Embracing the fact that everyone makes small, recoverable mistakes when they speak will help you feel less nervous and keep you from making larger, more critical mistakes. Most minor mistakes won't even be noticed. If you make a minor mistake like mispronouncing a word or skipping a small part, don't stop your presentation or start backtracking. This can interrupt your flow and make you even more nervous. Correct the mistake if you notice it right away. Otherwise, just move on. Close your eyes, inhale deeply by breathing into your abdomen, count slowly to three, and exhale fully. Repeat the process until you feel calmer and you can focus on your points instead of your nerves. This is an especially helpful tool to use right before you have to speak. Actors say and do things onstage that they would never imagine saying or doing in everyday life. That's because actors are playing a character. Think about yourself as a character who is a lot like you, but is really comfortable with public speaking. Play that character when you have to talk in front of your class. This helps some people because when they are playing a character, it is easier to take risks knowing that if you mess up, it's the character that will get the blame, not you. Being an actor is a "fake it until you make it" approach. Play someone who is collected and confident. Given enough time, your confidence will stop being fake. You've worked hard to make sure that this speech goes well, so show it. Your classmates will appreciate watching someone who has a bit of fun with the material. The more enthusiastic you are, the less likely they are to notice minor errors and missteps. Congratulate yourself for having the courage to get up in front of your peers. You will always be harder on yourself than anyone else. Ask yourself what you could do better next time. You can even make a list. Try writing down two positives of your presentation for every negative. This way you can focus on areas where you need to improve without feeling like the whole speech failed.
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One-sentence summary -- Stay calm on the big day. Try deep breathing exercises. Be an actor while you speak. Do your best and have fun. Reflect on your speech but don't dwell on mistakes.

This may sound extremely obvious, but it's nonetheless worthwhile to make sure you're already running as fast as you can. This is especially pertinent for PC users, as the Caps Lock button can mean the difference between walking and running. Keeping the Caps Lock button activated should keep you running while you're using the directional keys. For console systems, ensuring you're pushing the control stick as far as it can go will maximize your speed. Again, this may sound painfully obvious, but there are rare cases where a controller may not be working to one's complete satisfaction. While it doesn't necessarily affect your real speed, if you're trying to run somewhere fast, you should pay attention to the smartest way to get there. Running up steep surfaces won't get you somewhere nearly as fast as smooth pavement. Outside of Washington DC, Fallout 3's open world is generally pretty easy to navigate, so try to make the most direct route to wherever you're going. At the same time, you should take care to avoid enemy-heavy areas; if you're trying to move as efficiently as possible, getting into fights will only serve to slow you down. As is true for all Bethesda RPGs, the type of armour you wear will have a notable effect on your movement speed. A light armour, like leather armour, will keep you moving briskly. Better still, you can go without armour completely for maximum speed. Also keep in mind that armour tends to have a big weight associated with it. Not only will wearing a heavy armour slow you down, the weight attached will bog down your weight capacity considerably. On the other hand, some sets of armour like Power Armour come with a Strength bonus, which in turn will help boost your weight capacity. One of the most common speed-related complaints in Fallout 3 is the speed penalty you get from carrying too much equipment. If you're finding your speed bogged down, try dropping or selling some of your supplies. Before too long, you should find your character running at a better rate. Aim to discard junk items and extra sets of armour, as they tend to be the heaviest items in the game. Your character will be slowed down naturally if you have any weapons out. Try to make a habit of holstering your weapons whenever you're not using them. A hefty portion of the game's not going to require constant use of weapons, so while you might want that extra bit of caution, in most cases it's unnecessary. You can holster your weapon by holding the Reload button. Keep in mind that two-handed weapons (e.g. rifles, flamethrowers) will slow you down more than one-handed weapons, like pistols. If you're still worried about downtime while you're drawing a weapon, you can get the Quick Draw perk, which will make the holster/draw process 50% faster.
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One-sentence summary -- Make sure you're running at your full speed. Plan your paths accordingly. Dress your character in lighter armour. Keep your weight capacity as low as possible. Keep your weapons holstered.

Odds are, the moisture in the air will make it difficult to style your hair in any elaborate manner. Keeping your hair down may even prove difficult if you have hard to manage locks, since humidity may cause frizz and hard-to-tame waves. Reduce this effect by tying your hair back in a clean, slick ponytail. It may still get frizzy if you do not use any styling products to keep it down, but the amount of frizz will likely seem less noticeable. Braids add an extra layer of structure into your style, which may further reduce unruly frizz. Wear two tightly braided pigtails for a playful, youthful look, or try one large braided ponytail down your back to create a dressier appearance. Whether you have your hair down or tied back, hair care products like these are a rainy day necessity. Anti-frizz serum is especially usefully in taming fly-away frizz caused by the humidity. Hairspray may not be necessary for casual styles, but if you want your hair to stay put, you should definitely consider a quick spritz. If you have short hair, ponytails and braids are not exactly an option you can take advantage of. For a fuss-free rainy day style, slick your hair back with gel. This keeps your hair styled, frizz-free, and in place while giving it a wet appearance that nullifies the desire to keep your hair dry. Mascara can look especially bad once it runs, so waterproof mascara is an absolute necessity on a rainy day. Eye liner and eyeshadow can also run and get in your eyes once wet, so you should look for waterproof versions of these, as well. Liquid cosmetics do not wash away as easily as powders, so your make-up will last longer. Additionally, liquids and creams do not streak as easily as powders do upon getting wet. The less you can get away with wearing, the better. No matter what products you apply, there is still some chance that they will run or wear off. If you feel comfortable skipping make-up for a day, go for it. Otherwise, keep your make-up application at a bare minimum, only opting for a light coating of the products you feel are "must haves" in your daily beauty routine.
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One-sentence summary --
Tie your hair back. Try braiding your hair. Use anti-frizz serum or hairspray. Slick your hair back with gel. Wear waterproof mascara, eye liner, and eyeshadow. Apply liquid foundations and cream blushes instead of powders. Keep your make-up light.