This is a great thread!
We have some great comedian writers here.
I went the opposite way...grew up in the north and now reside in the south. Biggest thing I noticed my first christmas down here was when I got home with my live christmas tree in 80 degree weather and was trimming off the bottom branches outside, 3 robins flew by. Couldn't figure out what stopped me in my tracks at that moment but later figured it out. In the north the robins fly south in the winter and don't come back till spring so you use them as a gauge as to when the weather is going to start warming up. Now I live where they fly to so it was the strangest thing to see them in the middle of winter. Also the term "ya'll" is singular AND plural. The term "yeah buddy" means F%$* You but in a nice way because southerners have a reputation of being so polite. After about the first 50 times that people passed me and said "hey" and I responded with "what?" I realized that's how they say "hello" here. Also when someone responds to a story about someone who did something stupid they say "well bless their heart" which means "dumbass". Oh and the other one is "I'm fixin to" which has no time stamp on it at all. When someone at work says "I'm fixin to bring that up to you" what that really means is you better go get it or you may not see it in this lifetime.
Funny and sometimes sad of the different cultures you encounter

Also when someone responds to a story about someone who did something stupid they say "well bless their heart" which means "dumbass".

I thought a snowblower was a toy for a long time and ice fishing was fun. Over time, it became work when I had to get up 2hrs early just to clear the driveway so I could go to work.

i agree w/ #3 mike

OH lets also not forget...

Just because you have an SUV with 4WD does not mean that the laws of physics all of a sudden do NOT apply to your vehicle...

Just because you can start moving faster, in no way does that imply that you can stop any faster...
Objects once set in motion on ice.. will stay in motion (longer than expected)

again proved this morning when some jag decided I wasn't going fast enough in the 4in of freshly fallen snow... then proceeded to quickly pass me in the turn lane, flipped me the bird, and then slid through the intersection and into the ditch on the other side of the street I just waved when I passed him by

Oh and the other one is "I'm fixin to" which has no time stamp on it at all. When someone at work says "I'm fixin to bring that up to you" what that really means is you better go get it or you may not see it in this lifetime.

The proper North Carolina pronunciation is "FIDDIN' to"

I'm fiddin' to go to the sto!