My life is pretty crazy, part of the craziness is being raised by a northern mama in the south. My mother from New Jersey moved down to Georgia when she was 22 due to high housing taxes. Four years later she met my dad (a southern whose family has been in the south for many generations), had my brother and me, later got divorced and I was primarily raised by my Mama.
She has taught me a lot of Northern and as much as she didn't want to, she also taught me some Southern things. I also learned the differences and similarities between Northerners and Southerners. Some of them are hilarious and some are just straight up facts.
The Southerners have their own dialect. They say yes ma'am, no ma'am and yes sir, no sir. If you don't say yes ma'am to your mama in the south, you can expect hell to go loose. They also say Y'all when referring to a group of 2 or more people. Its pretty fun to say it and I use the word all the time.
Northerners, on the other hand, hate it! I once kept saying yes ma'am to my mom's sister when she was doing my hair for junior prom, after three "yes ma'am" responses. She looked me dead in the eyes and said if I said yes ma'am one more time, I will be the 1st person ever that will be burnt with the curling iron on purpose.
Needless to say, I kept my mouth shut for the rest of the appointment. My mom personally hates the word "Y'all" and for a while tried to correct me whenever I said it. Thankfully she gave up and I say Y'all to my heart's desire.
Northerners tend to have a bit of their own dialect and I personally like it better. The New Yorkers tend to have a rough accent and their favorite phrase is "Forget about it!". Some Southerners tend to hate it as much as the Northerners hate their dialect.
Another difference is that the Southerners LOVE football, more specifically college football. As a football fan myself (Bulldogs for college and the Falcons, and Giants for NFL) I describe myself as mediocre compared to some of my friends who will yell and curse at the T.V and this throughout all the games.
The Northerners will tend to be like this during rivalry games, playoffs, and the Superbowl. Unless they root for the Patriots (personal opinion I am not fond of Tom Brady or the Patriots due to their numerous scandals) then they act like the Southerners. Which is rather unfortunate because the Patriots are the Alabama Crimson Tide of the NFL.
The Southerners can't parallel park to save their lives, while the Northerners have to.
The Northerners can't stand the heat like how the Southerners can't handle the snow.
Southerners will say sweet things but they actually mean sarcastic or insulting. For example "Bless your heart" actually means "Are you that frickin stupid!" The Northerners will just tell you straight up how it is.
Northerners know their pizza and bagels and the Southerners know their BBQ. Both have high standards for their respective food. If y'all ever want to make quick money, Open a Pizzeria or bakery in the South and do it how the north likes their food or open a good BBQ place in the North and you will make some huge money.
Both groups love hunting like in Wisconsin they plan their school year around hunting season. In the South, they just flat out skip school. They both like to show off their kills.
Both groups hate traffic and tolls. Like they will find ways to take backroads in order not to deal with traffic.
Though the things I learned from being raised in the South by a Northern Mama, I learned to understand situations from both sides because of my own experience of not being on one side of a spectrum.