seat. you can hold it against your body, but it's really not too hard to hold it out away from you. then of course, try to get back on the seat. use two hands, and just do it really fast and it works! then work on circles, figure eights and going backwards as well.
yet another way of riding with the seat out is to ride with the seat off to the side of your body. first learn seat in back, then when you're doing a circle to the right, pull the seat to right side of your body. stay low, and hold the seat very close against your body so 