150/150 USA, 37/39 Canada, and 145 on Europe because all those countries changed names and shapes and stuff after I took Geography.
You'll probably get a lot of this from your friend, but I'll risk redundancy for the sake of a crash course in visiting the South.
People are really that nice, sometimes. Sometimes they're only pretending to be nice, but screw those people.
Be prepared to answer the question "sweet or unsweet?" if you order iced tea. I would recommend trying sweet tea in privacy, as it's sometimes quite a shock to the system if you aren't used to that much sugar.
Um.
Hush Puppies are fried balls of corn meal, and are good.
Fried okra is really good IF it isn't soggy.
I am still not sure if turnips and/or collards are actually good or if I just like them because I grew up with them.
Have some fried chicken while you are there, and not from KFC. Look for some place that has concrete picnic tables in front and a menu where they push the letters into the little plastic grooves.
Actually, this is a good way to find good barbecue, too.
"Coke" is a generic term for all soft drinks.
Be warned that Alabama won the national championship for college football this year, and so you may encounter the phrase "Roll Tide!" This is generally harmless and no harm is meant by it. Just don't reply "War Eagle!" to them unless you know what you're doing.
You missed the spring break crowds, so well done there. Most natives will be relieved that you are not holding a warm beer and/or yelling.
Take some good bug spray, or make that your first purchase.