How to Unicycle
The easiest way to ride a unicycle is to place it against a low fence so you can use it for support as you mount the unicycle. Then, position your feet so they're in a slightly offset, vertical position, with your dominant foot at the bottom. Next, hold onto the fence as you begin to pedal, making sure to go very slowly at first. Additionally, lean your body slightly forward, which will help you maintain your balance. Once you're comfortable balancing on your own, let go of the fence and try holding onto the seat or spreading out your arms as you pedal.
Find a low fence and place the unicycle parallel to the fence so that you can use it for support as you mount the unicycle. You want the fence to be high enough for you to rest your hand at a comfortable height while riding. Position the pedals of the unicycle in a slightly offset, vertical position so that one pedal is in the 4 o'clock position and the other is in the 10 o'clock position, mirroring the hands of a clock. If you know which foot is your front foot for sports like skateboarding, surfing, and snowboarding, you will want the pedal in the 4 o'clock position to be on the side of your dominant foot, and the pedal in 10 o'clock position to be for your non-dominant foot. Tilt the unicycle toward you until the seat of the unicycle rests between your legs. Squeeze the seat comfortably with your upper thighs. Continue to squeeze the seat between your thighs and place both of your hands on the fence. Keep your body and the unicycle facing forward and parallel to the fence. Step on the pedal closest to you in the 4 o'clock position with your dominant foot. Note that this is the opposite movement than you would perform on a bicycle, which requires that you step on the pedal furthest away to gain forward momentum. It will take a lot of practice to get used to moving backward instead of forward when mounting a unicycle. Take your time and be patient. Give yourself a little push with your other foot and sit on the unicycle seat, placing your non-dominant foot on the pedal furthest away in the 10 o'clock position. You will immediately have to pedal slightly to keep your balance. You want the wheel to rotate 1/4-turn backwards as soon as you mount the unicycle. Once you mount the unicycle, the pedals should be directly vertical. Hold on to the handrail and begin to pedal very slowly at first. Lean slightly forward in order to maintain your balance. Practice mounting and pedaling while holding on to a fence until you feel comfortable balancing on your own. This can take several hours to several days depending on your abilities. Once you feel ready, you can learn to free mount by following the same steps above without the assistance of a fence or handrail. Instead, use your hands to hold on to the seat as you mount or use your arms to help you balance. Put the weight of your body directly over the seat. Make sure you keep your shoulders back, a common mistake while learning is to hunch you shoulders. This allows your legs and feet to be light on the pedals. If you are heavy in your feet, the pedals become more difficult to manipulate, making pedaling and balancing harder. Move the unicycle forward by leaning your entire body and the unicycle forward as a single unit. This motion will feel awkward and possibly a bit scary at first, but you'll soon get used to it. Make sure to move the unicycle and your body in one solid piece. Don't just bend your upper body forward at the waist as doing so will throw you off balance and fail to propel the unicycle forward. Sit up straight when riding at a normal speed. Imagine that your back is an extension of the seat post. To accelerate, tilt forward slightly and apply more force on the pedals. To slow down, sit up straight and control the force exerted on the pedals. Be sure to keep your weight over the seat and refrain from tilting backwards when slowing down as this can be dangerous. Pedal backwards by sitting up straight with your torso over your seat and pedal the feet in short, 1/4-turn revolutions backwards. Be careful not to lean back and lose your balance. It is much harder to break a backward fall than a forward fall. Continue to practice pedaling forward and backward while holding on to a fence or handrail for as long as necessary. As you feel comfortable, you can let go of the handrail and begin to pedal without any support. Position your upper body directly over the seat and steady yourself for a turn. Be prepared to use your body to guide the unicycle in either direction. Use your hips to turn the unicycle quickly to the right or to the left. Because your hips are the most centered part of your body/unicycle unit, most of your power for turning will come from the hips. Pivot sharply on the wheel of the unicycle as you swing your hips by guiding the pedals with your feet. This motion needs to happen quickly in order for you to keep your balance. Hold on to a handrail when attempting to turn for the first few times. As you get more comfortable, however, you can take your hands off of the rail and use your arms to support momentum in the correct direction. To do so, wind up and swing your arms in the direction opposite of the way you are turning. Remember to tilt your body slightly as you turn to encourage motion in the desired direction. Stay close to your center of gravity and keep your weight over the seat. Continue to pedal immediately after you turn. It is much more difficult to balance on a unicycle when the wheel is stationary. Position the pedals in the same vertical position you used to mount the unicycle. Make sure your dominant foot is highest and your non-dominant foot is lowest. Transfer your weight to the foot on the lower pedal. Look forward with your gaze in order to maintain a grounded center of gravity. Hold on to the handrail with one or both hands depending on your comfort level. As you gain experience, you will no longer need to use a handrail to steady yourself as you dismount. When you no longer need to hold on to something as you come down, you will transfer your hands to the seat simultaneously as you step down. This allows you to catch the unicycle instead of letting it to fall to the ground. When you feel stable, step down with the highest, dominant foot first. Keep the weight on your lower foot the whole time. Immediately step your lower foot off as the first foot hits the ground to dismount . Be sure to time it right so that you don't lose your balance in the process. 
Find a low fence and place the unicycle parallel to the fence so that you can use it for support as you mount the unicycle. Position the pedals of the unicycle in a slightly offset, vertical position so that one pedal is in the 4 o'clock position and the other is in the 10 o'clock position, mirroring the hands of a clock. Tilt the unicycle toward you until the seat of the unicycle rests between your legs. Continue to squeeze the seat between your thighs and place both of your hands on the fence. Step on the pedal closest to you in the 4 o'clock position with your dominant foot. Give yourself a little push with your other foot and sit on the unicycle seat, placing your non-dominant foot on the pedal furthest away in the 10 o'clock position. Hold on to the handrail and begin to pedal very slowly at first. Practice mounting and pedaling while holding on to a fence until you feel comfortable balancing on your own. Put the weight of your body directly over the seat. Move the unicycle forward by leaning your entire body and the unicycle forward as a single unit. Sit up straight when riding at a normal speed. Pedal backwards by sitting up straight with your torso over your seat and pedal the feet in short, 1/4-turn revolutions backwards. Continue to practice pedaling forward and backward while holding on to a fence or handrail for as long as necessary. Position your upper body directly over the seat and steady yourself for a turn. Use your hips to turn the unicycle quickly to the right or to the left. Pivot sharply on the wheel of the unicycle as you swing your hips by guiding the pedals with your feet. Hold on to a handrail when attempting to turn for the first few times. Remember to tilt your body slightly as you turn to encourage motion in the desired direction. Continue to pedal immediately after you turn. Position the pedals in the same vertical position you used to mount the unicycle. Transfer your weight to the foot on the lower pedal. Hold on to the handrail with one or both hands depending on your comfort level. When you feel stable, step down with the highest, dominant foot first. Immediately step your lower foot off as the first foot hits the ground to dismount . 