You know you're in the south when someone guesses your home town correctly and then goes on and on and on and on about mintcake, never once shutting up.
...when seeing someone riding horseback on the grassy median is a common occurrence.
...when sweet tea is actually sweeter than your dessert.
...when you can drive for more than 4 hours straight without seeing a building other than a gas station. (By the way, driving through open country kicks ass!)
...when your summer weather is only equivalent to our winter/spring transition weather.