Have you ever written an author a fan letter?
Did you get an answer?
Did it spark a conversation? A meeting?
(And, sure, I suppose that e-mails DO count . . . but I’d say no to something like a message board on which the author happens to participate.)
Don’t forget to leave a link to your actual response (so people don’t have to go searching for it) in the comments—or if you prefer, leave your answers in the comments themselves!