I'm in a gun-unfriendly state. Nice thing about that is no one here (unless you're actually in the process of holding up a bank) expects you to be armed.
I've had people brush up and catch the butt of the gun underneath the jacket. If it was some guy passing me in a restaurant, he never even looks back. If it's someone I know (at a party), they may give me an odd look, and I say, "D-mn Blackberries!" or similar, and I get the agreeing nod, and that's it.
I take great pains NOT to print here. It seems that standard belief here is that either a) the presence of a gun either declares that you are a homicidal maniac about to start a rampage or turns you into same, or b) a gun is the same as a bomb--it could go off AT ANY MOMENT! (After all, the ONLY PURPOSE of a gun is TO KILL, etc., etc., heard it all a million times...)
If I print or flash here, and it gets noticed, I would expected a crossed-kneed, syllibant cry of, "Oh my G-d [especially if he's an atheist] HE'S GOT A GUN!" Now you've got a choice to run or stay.
People who have done nothing wrong should stay. I would NOT try to attempt to influence the behavior of others at this point ("Hey, don't call the police, pal."), as an armed man attempting to force others to do his bidding is an easy brandishing charge.
I would expect that after the police get there, I MIGHT be looking at a disturbing the peace citation. No big deal--I'd probably NOT get convicted--except that the CLEO (issuing authority) can use this citation--even if I'm "exonerated"--to reject my next CCW renewal (if he doesn't just revoke it immediately).
Fun times. Now you understand why I take great pains not to print, and not to flash. Ounce of prevention.
IANAL, and I do not have on-point case law (nor do I wish to become it).