Rules
- 1One player (the Observer) takes a 'mental snapshot' of the room or another person for 30 seconds.
- 2The Observer then leaves the room or closes their eyes.
- 3The rest of the group changes ONE subtle thing (e.g., move a glass, untie a shoe, swap hats).
- 4The Observer returns and has 60 seconds to find the change.
- 5Found it? Everyone else drinks. Missed it? The Observer drinks.