Having looked at this task, I spent a while thinking about how to make an interesting and useful gesture... Then the answer came to me! A somatic way of making people lose the game! (if you don't know what i'm talking about, see www.losethegame.com, otherwise, hah! you just lost the game) To form the gesture, simply hold your hands out as if holding a game console controller (console of your choice). Instruct all of your game-playing friends about the gesture too, so that you can make them lose lots!