Everyone is blindfolded and spread out across the playing area. They are then told to go. Everyone must wander around and try to tag another blindfolded player. If they tag someone, the player who was tagged is out. It's important that the other players don't know someone has been tagged. If two people tag each other at the same time, they must wander off and find someone else. The winner is the last blindfolded player left.
Source: From the original site.