your best bet...keep your mouth closed, your eyes open, look freakin hot, be mysterious...and stop attempting to make them hear what a mistake they are making and show them instead..
Great advice. Also, we DAM's are VISUALLY stimulated, so the looking hot thing is a big deal for us - yeah, I know, big mystery there.
You be the bait and see if he bites. And, don't worry if he doesn't.