Lift shirt, NEVER TOUCH GUN OR HOLSTER, turn so they can see it. Say yer piece and sit down.
That would get the same reaction. Anti-gunners will still claim intimidation.
It's not intimidation, of course, but it's still not a good idea. He could have done the same thing with an unloaded weapon, since an unloaded gun on a table is just as likely to fire itself as a loaded one. It still would have made the gun nuts* whine about intimidation, of course.
*Anti-gunners are the real gun nuts, if you think about it.