Another reason I love it so much is that parents and children can play at home. All you need is a deck of card with the face cards removed. You need three participants. Here is how you play:
* Divide the deck into two piles, face down. Place one pile in front of player A and one in front of player B.
* Player C says, "Salute!" and the other two people pick up a card from their deck and place it on their forehead WITHOUT LOOKING AT IT.
* Player C then looks at both cards and says, "The sum of your two cards is X". Seeing only the other person's card, each player has to figure out the card on her own forehead.