Two players sit across from each other at a table, focusing on a small white ball. The objective is to make the ball roll toward your opponent and away from you, using only your mind. Headbands measure the players´ alpha waves, and the ball rolls away from the player with the calmest mind.
Of course, the logical next step is the removal of the ball. Then you just have two wirey, intense people sitting opposite each other, trying to remain as calm as possible, staring into each other’s eyes… and…. must… not… blink!
(I’m really happy that Wikipedia has a whole useful entry on the rules for a stare-out contest.)