Divide your group into two equal groups. Have each team stand shoulder to shoulder with their hands behind their backs facing the other group. Give one member from each team a penny (do this slyly so the other team can not tell who you gave the coin to.) When each team has a coin explain to them that their hands are always supposed to be behind them and that they are supposed to pass the coin from person to person without the other team knowing who has the coin, when a designated time ends (I use music like musical chairs) have the opposite teams guess one person who they think has the coin. Tell the person guessing to look into each of the opposite players eyes to determine who they think it is. If they guess correctly the person caught is out. The team with the most players left wins.