My wife knows I have a CHL.... although most of the time she never knows if I am carrying if she was not in the room while I was getting dressed.
My son knows I have a CHL.... he is a Police Officer and we share a lot of gun related stuff together.
People I buy guns from who will only sell to a fellow CHL'r know I have a CHL.
No one else needs to know.
I'm 60 years old, totally grey haired, disabled, and walk with a limp because of injuries earlier in life. If there are BG's out there who see me and consider me an easy target, I have the element of surprise. I don't want anyone else with me broadcasting that I have a gun and taking that element of surprise away from me.