In my CCW class the subject came up. His suggestion is to not divulge unless asked. However if asked be totally honest. That’s what the CCW license is for, to show you are in compliance with the law.
interesting, in my many legal aspects of conceal carry classes, all of my instructors say keep your hands on the wheel open palmed and inform the officer if you are carrying whether you have to by law or not. different for any guns locked away in the trunk.