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1 2 3 is a simple game of attention that requires neither equipment nor preparation. Two players compete each other; of course, several pairs can play at the same time.

Equipment
You don't need any equipment to play that game.

Procedure
The two players repetedly count from 1 to 3. They alternateley pronounce the following number:

Player 1: "one" Player 2: "two" Player 1: "tree" Player 2: "one" Player 1: "two" ...

This requires attention by both players, not to pronounce the wrong number, but it should be managable after a few tries. Then, one after the other, the numbers are exchanged by simple movements. Instead of saying "one", the player has to snip with his fingers. The number "two" is replaced by clapping the hands, and number "three" is exchanged by a small hop. So, after the first number ("one") being replaced, the sequence is:

Player 1: snap Player 2: "two" Player 1: "three" Player 2: snap Player 1: "two" ...

Finally, only movements are made:

Player 1: snap Player 2: clap Player 1: hop Player 2: snap Player 1: clap ...

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