If four or more were gathered a game of some sort was being played. That's how it was growing up in my family.
Mostly "Rook", a brilliant card game if you've never heard of it, but we'd play any type of game! The more the merrier. In fact, it wasn't uncommon when we were all together, I'm the youngest of 17 cousins, for there to be 5 different games going on at once.
Thanks again to Jimmy Fallon, I found another game that I know my family would love!