"Baby If You Love Me Give Me A Smile."
Have the group sit in a circle (or stand, it doesn't really matter) and have one person stand in the middle. Have the person in the middle go up to someone and in a funny way say "baby if you love me give me a smile." The people in the circle try not to smile. If they do it's their turn to go in the circle, if they do not, the person in the middle tries to make someone else smile. The game is HILARIOUS and makes parties so much fun!