All the players form a circle, then one is chosen to be it and are blindfolded. They then stand in the centre of the circle. The other players then have a tennis ball which they throw to each other, they can"t pass it side to side! The blindfolded player must try to intercept the thrown ball or catch a player with the ball before it is thrown, if the blindfolded player succeeds in intercepting the ball, they swap places with the thrower. If the player who has the ball thrown to them misses a catch they become the blindfolded player.
Source: From the original site.(Submitted by: sonja)