...say...Dan Abnett, or Matt Forbeck, Robin Williams or Billy Crystal...what would I talk about? What would I ask?
I'd ask about Warhammer!
Do you play Warhammer Fantasy? 40k? Battlefleet Gothic? Inquisitor?
If so, what do you play?
How long have you been playing?
Do you get to play often?
What kind of player are you? A goof off, a generally friendly player, total competitive bastard?
Do you read the Black library fiction? Which do you like/ dislike?
Are you in to the minis-painting part of the hobby?