Allow everyone to look around the player area for several minutes. Then pick one person and blindfold everyone else. The person who can see then has to pick an object, and tell the other players what they are looking at, ";I spy with my little eye something beginning with B";. The blindfolded players then have to try and remember what objects there are, and try to guess what the object is. When a blindfolded player guesses correctly they swap places with the sighted player.
Source: From the original site.