I don't know how many others have noticed this besides myself, but I have seen more than a few folks over the years who were doing concealed carry but being pretty obvious about it, either through poor behavior habits or carelessness. If others can tell you're packing, then you are NOT carrying concealed.

My wife had to quietly approach another diner at a restaurant she was at because he was carrying in the small of his back - but because he was leaning forward the weapon was fully exposed and even if he tried to rise up in a non-emergent situation the pistol's grip would have caught on the back of the chair literally locking the chair onto his back. When she leaned over to whisper into his ear, he apparently learned that he wasn't all that good looking after all!