There are few places I don’t (can’t) carry mine. They include federal buildings, local, county and state buildings that have metal detectors at the entrance, and any place that posts no weapons. Other than that, I can carry pretty much anywhere, and do. That includes banks.
I live in AZ, and whenever I see a person who is open carrying, I smile at them, or many times talk to them and shake their hand. Sundays seem to be a big open carry day around here.