Answer:
I mirror your actions.
I can make arrows fly. I can make kites soar. What am I?
I am not very commonly found! Only in some rainforest! I have an odd number of toes! I'm very lazy and hang upside down! What am I?
I build up castles. I tear down mountains. I make some men blind, but I help others to see. What am I?
What goes up and down stairs without moving?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.