Here’s an interesting meme:
I don’t think the selfies or seeking attention are necessarily a bad thing. Open carriers are not shooting people, yes, the finger should be off the trigger and the weapon should be carried like you’re almost ready to shoot someone.
As for the what to wear, I do agree that dressing nice help, but who knows? Sometimes bank robbers wear suits and tie, so there’s no guarantee that the ammophobe won’t be scared because you’re dressed to the hilt.