Share your toys.
(Just maybe not with the kid who can’t stop sneezing.)
Wait your turn.
(Everyone wants a chance to go down the slide. That boy who’s been sitting at the bottom for 10 minutes and won’t budge? That’s where your feet come in.)
Rule # 3:
Use your inside voice.
(Okay, not literally. But remember your shrieks and squeals are as jarring out here as they are everywhere else.)