I was stationed at Nellis, in Las Vegas, NV - and that used to tick my now ex-wife and ex-sister-in-law off something fierce. We'd be walking along Las Vegas Blvd, and I'd be nodding and saying Howdy to folks. If I saw a car with Tennessee plates, I'd walk up and start talking - and they'd hang back all embarassed - funniest part was when the Tennesseeans I was talking to would see them hanging back and acting embarassed and would ask "They're not from back home, are they?"
LOL I dated two guys from Tennessee and they did the same thing. I have to admit that it took me awhile to get used to it.