It's his first event, and we've secured a Microsoft presenter for him.
He asked, "is there any way I can see the deck before they present?"
My answer: "You bet...you should demand to see it."
Ok, maybe that's rough, but these guys are there for you (if you get one...not easy) and work for you.
Tell them what message you want...can you work in a good customer story or testimonial?
The name of the game is leverage.