This is one of Kal's favorites. It is a game where you have to deduce the rules of the game.

The player starting the game (and giving points) cannot score points themselves. They issue a correct statement such as:

"You can have a classy tassle behind the green glass door, but you can't have a painted string."

The other players go on issuing statements themselves in the same format, and whenever a player says a correct statement - one that matches the (unstated but consistent) rules, the referee player, says "True statement, Millie" (or whatever the player's name is that got it right. That gives the players another sentence to use to try work out the rules.

Once you have figured out the rules and can issue as many correct statements as you can think of, don't tell any of the other players. Let them figure it out themselves. There are a few variations of the rules, but in general, once you figure it out, you won't be a player anymore. You can be a referee in a subsequent game.

Note: Whatever variation of the rules are selected by the referee at the star of the game must stay the exact set of rules for the entire game. No introducing variations while people are still playing: the rules stand firm and *every* statement issued by the referee *must* match the rules exactly.