I ride unicycles for a hobby. It's difficult but really fun. It's a vehicle with one wheel.
I seen a unicycle before. those must be hard to learn!
Yes it wasn't easy. I used to be a street performer when I was younger for extra cash!
Thats awesome, You must be very talented at riding it. 
I think so. One of my most favorite things is riding in festivals and seeing everyone elated by the unicycle.
Uni-cycling is what gets the crowds cheering at most circuses. 
Yes, among all the other things that happen at the circus like trapeze acts, dancers, musicians etc.