hopping. its really useful. dont do the whole "by the book" way in those "you can ride your unicycle" books. Thats nonsense they say to learn stuff like stomach riding and what not. I say learn the fundamentals after you learn riding. (hopping, idling, backwards, etc.)
jon
-- AllThingsUni - A Hog Noob
I will prepare and one day my time will come. - Abe Lincoln
it depends on what style your into, if you want to do trials, learn to hop, if you want to do freestyle, learn to hop, if you want to do muni, learn to hop, so i'd say the next skill you should learn is hopping...where you stand up off the seat, and hold the seat with one or two hands, and bounce up and down.
Learning to hop can wait. If you just barely learned to ride, I suggest practicing tight turns. After that, learn hopping and idling concurrently. Hopping is a lot easier, but idling is generally more useful, unless you ride trials.