Turns go top to bottom. Up to 12 players.
A ring of 52 cards round a cup in the middle. Draw one, do what it says. Fourth King drinks the cup.
Call it: red or black, higher or lower, inside or outside, then the suit. Get one wrong, take the sips. Worst caller rides the bus.
Pace yourselves, water counts as a drink, and nobody drives. Tap “Fullscreen” and prop the laptop on the table.