Opposites
Have a list of things for the players to do but remember they must do the opposite e.g.

Walk - Run
Quiet - Noisy
stand still - Jump up and down
Sit down – Stand up
Wave left hand – Wave right hand

The game is to do the exact opposite to what you are saying, if someone gets it wrong
then sit them out from the game. The last one remaining is the winner

You will need
Music – Background music
Prize – for the winner