*sighs* Unfortunately, I did not own any of her books when I met her, so I couldn't get anything signed. Oh, well.
Okay, the dish: she started writing because all the books out there about female characters were written by men. *cough cough* She wanted something a bit more realistic, with a more pragmatic heroine. (lesson one: write for yourself)
When she started to write, she found out that there was a niche (need for such a nice) for what she was writing. (lesson two: if you can find an empty spot in the market and fill it, hey presto!)
She then read us an exerpt from one of the Protector of the Small series. Then she answered some general questions - sorry, but I can't remember every detail; this happened years ago!
But those are the two most conscious bits of knowledge I took away from the reading. It was life-altering, because it made me re-think whether I wanted to be an author or not.
(Bet you can guess what I decided, right?)