I want to be in a book

My friend T is writing a book and I've asked to be in it. Just a walk on part. Something like I ask the hero for directions or bump into him in a bar and pass on some advice or something, and then I'm never seen in the book again. He says he's doing it. The start of the book will start with the usual disclaimer. "This is a work of fiction, any resemblance to persons living or dead is entirely coincidental...except for Greg Koster, he's real." I really hope he gets that book published.