One player is blindfolded, they are then led to the centre of the room. The other players then walk briskly around, jump or dance and chant ";One, two, three, four Who is at the pippin door?"; over and over. When the leader decides they points to a player who will, in a disguised voice say, ";It';s me";. If the blindfolded player guesses who it is, they swap places otherwise the blindfolded player remains blindfolded until they guess who it is at the Pippin door.
Source: From the original site.