There are two players. The first to kiss the other’s back wins. No lifting.
Never use stairs again.
Take pictures of as many of your Facebook friends as you can in a 24-hour period.
Go through as much time as possible without using one randomly selected letter of the alphabet.
Two players each have an hour to learn one word of their choosing in as many languages as they can. Whoever learns it in the most languages wins.
Two players ask each other the same question about each other. The first player to find a stranger who gives the same answer that their opponent did wins.
Hide and seek, but everyone seeks and the person who is being sought is someone who all the seekers know and doesn’t know they’re part of the game.