Following up on Fallshirmjager's post - this is from the open carry section of the Florida code that he posted:
So, you can briefly and openly show your gun as long as it's not in an angry or threatening manner. You would think if someone noticed a gun printing or shadowing, this would cover the situation - but who know's with laws. If a policeman notices, hopefully he's a good cop and knows this. And if you wind up in court over it hopefully you don't get a whacko judge lol.It is not a violation of this section for a person licensed to carry a concealed firearm as provided in s. 790.06(1), and who is lawfully carrying a firearm in a concealed manner, to briefly and openly display the firearm to the ordinary sight of another person, unless the firearm is intentionally displayed in an angry or threatening manner, not in necessary self-defense.
Having said this, open carry is legal in my state - I try to conceal in such a way that other's won't notice that I'm carrying, even tho the keen observer might notice. I also observe other's to try to see if they're carrying or how they might be carrying. It's interesting when you notice someone looking you over in the same manner - most people are caught up in their own world and don't take much notice of others around them.