Answer:
We applaud if you perform well.
Sometimes dark and sometimes bright, I make my way among twinkling lights. Seas and oceans obey my call, yet mountains I cannot move at all. What am I?
You can catch me but cannot throw me. What am I?
Crooked as a rainbow and slick as a plate ten thousand horses can't pull me straight.
I am owned by every man though my length differs. Their wives uses me after getting married.
I'm the source of all emotion but I'm caged in a white prison.