I have other firearms more compact, but I usually carry a Ruger P-95, because it is a steady, double action platform, and I can beat someone to death with it if I run out of ammo.
I also open carry as much as conceal carry (which isn't very concealed), because I don't tend to visit places where gunfights are likely to occur. I mean you never know, but you can damn sure avoid greater possibilities. Living out in the "sticks" where damn near everyone is armed kind of helps too.
Being nice can also defuse situations where people might make the mistake of thinking you are unreasonably dangerous, getting all nervous and shit. Carrying a firearm, doesn't require you to be a badass, although situation awareness and thinking about other people can go further towards making them more comfortable with the idea you are carrying altogether.