So guys. I cannot stress this enough: Delirium is the anthropomorphic personification of insanity. She is semi-omniscient and probably will know anyone in camp who has some amount of.... lacking sanity. The way I like to say it is that when you brush against her realm you leave something behind. This is how she knows of people. What they leave behind. She also loves to go visiting~!
I will do my best to check out characters' permissions/stats memes for the Psychics section. But that alone won't be enough. I need to know what sort of brushes with insanity your characters may have had, what psychological disorders afflict them, and so on. And DUH, I need to know what's kosher for her to talk about and what you, the player, would rather she/I not touch on. ♥
GO WILD. The more info you give me, the better. I love meta.
ETA: To help you figure out how much your character might interest Delirium please see
this lovely essay: Delirium and Her Pings. It gives Ping Values and everything, and is comprehensive as I could manage.