Problem: Article: Flat surfaces such as a driveway, sidewalk, quiet road, or park trail are stable. There are no slopes, so the falls are shorter and you will have an easier time balancing and coming to a stop. Short grass and smooth gravel are also surfaces you can use. Falls will hurt less, but these surfaces force you to pedal harder to move the bike. Lower the bike seat far enough that whoever's riding can put both of their feet flat on the ground while seated. A low seat allows you to stop yourself with your feet before you fall. Adults don't need to use training wheels, but young children can use these or specialty balance bikes. It is possible to remove the pedals to keep them out of the way, but it isn't required. Find out how the brakes work on the bicycle. Stay off the bicycle. Keep it next to you and walk it. Push the brake buttons to get used to their location, how they feel, and how the bike reacts to them. Once you've learned this, you'll feel more comfortable because you'll be able to make an emergency stop when needed. If your bike has brakes on the handlebars, test each one to see which controls the front and which controls the rear wheel. These can be switched by professionals. Notice how squeezing the back brake causes the rear wheel to skid. Squeezing the front brake causes the bike to pitch forward. If your bike doesn't have brakes on the handles, it should have backpedal (coaster) brakes. To brake, press down on the pedal closest to the back end of the bike as if pedaling backwards. If your bike is a fixed wheel and hasn't been modified, it has no brakes. Instead of braking, you will need to either slow the pace of your pedaling or skid by leaning forward and holding both pedals horizontally with your feet. It doesn't matter which side you choose, but your dominant side will feel more natural. A right-handed person, for instance, can stand on the left side of the bike. Lift up your right leg, reach it over the bike, and put it on the ground on the other side of the bike. Hold the bike upwards between your legs. Feel the weight of the bike between your legs and try to keep it balanced as you lower yourself. Having feet on the ground prevents the bike from toppling while you acclimate. Maintain your weight in the center of the bike, evenly distributed between your left and right sides. Sit up straight instead of leaning. Rather than pedal, push yourself off by foot. Tuck your feet upwards and onto the pedals. While in motion, maintain the bike's balance as long as you can. Once you feel the bike beginning to tip, catch it by putting one foot to the ground, then push off again. When you look at obstacles, your bike heads towards them. Concentrate on looking towards where you want the bike to go. It takes some practice to avoid distractions from road hazards or other sights. Before you have complete control, go where the bike goes. When starting, the bike tends to go to the side or in circles. Instead of stopping, let it go and try to maintain balance while it does. If you are helping a child or friend, you can hold onto their lower back to help them stay steady while they practice. Start with one foot on the ground. Your other foot should be flat on a pedal pointed upwards. Push off, put that foot on the other pedal, and go! Keep going as long as you can maintain balance. Going faster makes balancing easier, but don't go so fast that you lose control. Don't stop by foot. A better practice is stop by using the brakes. Stop pedaling, shift your weight onto the lowest pedal, and squeeze both handbrakes, if the bike has them. Once the bike has stopped, raise yourself a little and step off onto the ground. Putting your feet down too early while using the brakes stops the bicycle abruptly. Your momentum won't stop and you'll whack into the handlebars.
Summary: Begin on a flat surface. Adjust the bike seat. Test the brakes. Plant one foot on the ground. Start gliding. Keep your eyes straight ahead. Start pedaling. Dismount from the bike.

In one sentence, describe what the following article is about: This button is listed in the sidebar on the left and will open the wallpaper options. You will be taken to the 'Choose' page where you can select between Apple wallpapers and pictures stored in your Photos app. You can reach this same interface by launching the "Photos" app, tapping a photo to view, opening the "Share" menu in the upper right, and tapping "Use as Wallpaper". You can also pinch or reverse pinch to zoom in and out. The bottom bar lists a number of options on how to use your photo as your wallpaper. Tapping the first 3 will set your photo as a wallpaper. "Set Lock Screen": This option will set the photo as your wallpaper only when the device is locked. "Set Home Screen": This option will set the photo as your wallpaper only when your device is unlocked at the home screen. "Set Both". This option will set the photo as you wallpaper on both your lock and home screen. "Perspective Zoom On/Off". When on, this will automatically adjust your photo to fit the screen so that the photo scrolls slightly as you tilt your device. "Cancel": This will return you to your previous location without setting the wallpaper.
Summary:
Open the "Settings" app. Tap "Wallpaper". Tap "Choose a New Wallpaper". Tap a picture to preview it as a wallpaper. Tap and drag the picture to adjust its positioning. Choose your wallpaper settings.