Unicycles are often used while the performer is simultaneously juggling or plate spinning. To do this, performers usually rock back and forth on the unicycle. This is called "idling". It lets the performer pay attention to what they are doing in their hands, instead of to the ground in front of them. To "idle" a unicycle, performers usually press one foot down, anchoring it in the bottom position of the wheel. This foot both provides support and completes the rocking motion that is necessary to keep the unicycle balanced.