I believe that
concealed means concealed. Anyone noticing your gun, or even
suspecting that you are carrying a gun, may result in a
"man with a gun in the Acme!!!" 911 call.
I fix PCs in strangers' homes for a living, so I really don't want someone to notice that I'm carrying. When I first got my permit in 2005, I kept a J-frame in my pocket in an Uncle Mike's pocket holster. After a creepy incident where I suspected 5 rounds of .38 Special may not have been enough, I decided to carry my 10mm Glock instead.
I went through the "covering garment" phase, but I wasn't satisfied with the result, so I decided to hide the gun in plain sight in a
Safepacker.
It has worked perfectly:
nobody notices it. Policemen, security guards, and everyone else completely ignore it. I've shaken hands with a US Senator wearing it, while his security guy looked right past me to watch the other folks in the crowd.
Yesterday, I had a new customer in Wilmington. It turned out that he was a really nice guy and a retired New Castle County police officer. When he told me that, I realized that carrying IWB and accidentally "printing" in this guy's basement might have ended REALLY badly for me.
I told him that I have a permit, stood up and asked him "Where's my gun?"
He looked me all over, didn't find it, then suddenly said, "Oh my Gawd... it's in there? I never would have guessed that was a gun."