I use it in class as a card game. It is played by three or four students. At the beginning each student gets 5 cards. The other cards are on the table - face down. Now the students try to collect four matching cards by asking the others e. g.:" Susan, have you got the card with the ...?" As soon as a student has formed a set of four cards, he puts it on the table. Then he starts asking for another matching set. In each round of the game the students must pick up one of the cards from the stack of cards in the middle of the table. Winner is the student with the most matching sets.