The Rules: Each player begins with three (or more) fingers in the air. Players take turns stating "Never Have I Ever [shocking/titillating action]." If you are guilty of said action, put down one of your fingers. Last person with fingers up wins, but also is probably a loser in life.
"Never Have I Ever" is one of those games that you play as a teenager, after you've grown out of actual games and start looking for excuses to say or do sexual things. You'll also notice that around this age, all of the other games on this list now become "strip" versions of the game. American teenagers spend most of their free time in cars trying to convince each other to take their clothes off. This is a large part of what makes America great.