“If you’re somewhere with a lot of people around, chances are one of them is playing something secret. If that seems unlikely at first, just look through one of many threads where people share the weird little games they play in their heads.”-Holly Gramazio, “How to Play in Secret.” Wellcome Collection. December 5, 2019.
I like the idea of playing games in public. One I read about awhile ago was trying to do reverse pick-pocketing, where you try to drop a quarter in someone else’s pocket without them noticing you doing it. And, of course, there’s playing games in public, such as a game of tag that can happen at any time and on your way to work. Check out some of the other suggestions of the Cacophony Society.