concealed carry

I have received my concealed carry permit and for last few weekends I have been doing an experiment in CC my Glock 20 which is a very large gun. Nobody has said anything and the few that I have asked don’t realize that I got it on me the one friend who her and her husband are gun collectors I noticed that she was looking at my hip so I’m pretty sure she knew I was carrying. I think the only people that notices are those that have guns themself.