-they have arcane social conventions and the punishment for not paying the correct respects right is banishment, if you’re lucky, and death if you’re not.
-they have wild and unexpected parties where you’d least expect to find them, but if you’re bold enough to entertain them they’ll feed you and caress you and play with you all night.
-time runs strangely in their realm. their homes are summerlands: warm and bright, no matter the season. there is always fruit on their tables. but not everyone who comes in from the cold is let back out again.
-their games are cruel and complex and unfair, but if you can beat them by their own rules you will access riches beyond imagining.
-sometimes they just fucking fuck with you, the fuckheads.
-they will absolutely steal your children away. when your children return— if they ever do— they will come back strange. they will have magic earrings or necklaces or bracelets. they will know things they shouldn’t. they won’t know things that they should. your strange children might survive, might even prosper, might take wives and husbands and have children of their own. but they will always be marked by their time away from your world.
-the price for pissing them off is always death. sometimes just you. sometimes your whole community.
-if you are very good, and very smart, and very brave, they will grant your wish.