This says nothing about verbal communication, as observation in this sense is visual as watching carefully to notice things. Just as an observertory has telescopes for visually looking at the universe.GC §411.171.
DEFINITIONS.
(3) "Concealed handgun" means a handgun, the presence of which IS NOT OPENLY discernible to the ORDINARY OBSERVATION of a REASONABLE person.
I can tell anyone I want that I have a CHL, it means diddely (sic). Until you actually observe a weapon on my person it means nothing.
What does mean something is flashing, branshing the weapon---pulling it for no reason--pulling it out to show it to your friend or a co-worker and you are anywhere except at your own house or a range where you're practicing.
For instance: At work I can't carry, doesn't mean a few of us there don't talk about guns every day. We can discuss prices, and how well we do. They know I have a CHL and I know they don't... (most can't qualify for the CHL for one reason or another)... But just talking about one doesn't mean I have one on my person right then or it sure does not mean that any of them have guns on them either. It's just like when you don't have one on your person you don't have to show your CHL to a LEO!
Russ