Book Signings? Love ’em? Hate ’em?

I’m planning to do my first book signing at a library in a little town south of Orlando, in January. I have no idea what to expect, but I wanted to get some experience with the idea, and thought it would be a good place to start. (Plus they invited me! 😀 ) Have any of you done signings? Can you share any of your experiences with us? I know Evelyn Cullet & Ned Hickson have, so I hope they’ll pop in here, but how about the rest of you? And if you haven’t done any yourself, have you gone to any for other authors you’d like to tell us about? Caitlin? Anyone? (Caitlin, I’d love to share your photo with Ilona Andrews, if you wouldn’t mind.)