Don't worry about it, at least not in Virginia. I have NEVER had anyone, anywhere, anytime say anything (negative)about an openly carried handgun, much less one that I made even a modest attempt to conceal. I have gotten a few questions about what kind of gun I had, how they could get a permit (not needed for OC), and so on, but not often. Go on about your business and don't sweat it.
For God so loved the world, that He gave His only begotten Son, that whoever believes in Him should not perish, but have everlasting life.
John 3:16 (NKJV)