If you just challange him to a game

"Well, you sir look like you know the game", You say, appraising his diamond 8 ball cufflinks, "Hows about playing a game with me, I'm not half bad myself".

The man who may well be Fats Fats looks at you like he might look at a wino panhandling him for spare change. "I don't play for free asshole, put down a thousand bucks and we've got a game".