Answer:
What get wet while drying
I have legs but walk not, a strong back but work not. Two good arms but reach not. A seat but sit and tarry not.
I look at you, you look at me, I raise my right, you raise your left.
Do what he says and you'll be fine, don't and you lose the game.
At the sound of me, one may dream or stamp their feet, At the sound of me, one may laugh or sometimes weep.
All about, but cannot be seen, Can be captured, cannot be held, No throat, but can be heard. Who am I?