Have everyone stand in a straight line (shoulder to shoulder but at half an arms length) and blindfold them. Once they are all blindfolded, tell them all to take a step to their left, then to their right. You continue to have them do this until someone turns the wrong way or they bump into another player. That person is then out of the game and can remove their blindfold. If no-one makes this mistake after 2 minutes or so, ask them stand on one leg and hop for as long as they can. Anyone who looses their balance is out. The person left hopping the longest wins.
Source: From the original site.