For any group of people, someone makes a statement and everyone indicates whether it applies to them. The goal is to find a statement that splits the group exactly in half (+-1 for odd groups).
It's a pretty fun way to get to know multiple people, and give everyone a chance to contribute.
It's a superset of "never have I ever" with a more interesting
Targeting a non-extreme endpoint (the middle, not either end) requires a lot more sophistication than going for the most common/rare thing.