Break your group into pairs or triads. Have them turn back to back (to back). Have them hold out a certain number of fingers (and thumbs). You say lock in your fingers, and then count down 3, 2, 1. Everyone flips around and tries to be the first in their pair or triad to yell out the TOTAL number of fingers. Play 2 rounds, ask an icebreaker question between each round. Play 3-4 rounds with different people.