The game starts out with one person who picks a theme of some sort and is the only person who is “in”. He then lists three things that are part of that theme to get people started. Next, people start listing three things and anybody who is “in” will respond with yes or no to each of them. Once somebody puts down three things that are all “yes”, the people who are “in” will usually decide to declare him in (unless for some reason they are not sure that person has guessed the theme, but normally you just declare them in).

A sample game might go like this:

I post

red
blue
green

to start off the game. So Spooky guesses

orange
poop
dinosaur

to which I respond “Yes, no, no”. At this point, Spooky figures out that the theme is colors and guesses

magenta
cyan
black

To which I say “Yes, yes, yes. You are in.” Then Spooky can start answering yes or no to anybody’s questions. The game goes on until people decide to stop.

Let’s start out with a (hopefully) relatively simple one.

saving
big
money