Quoted:
How are outsiders (from NY) welcomed or doesn't matter?
Don't:
1) Begin every conversation with "Back in NY, we did it another way better."
2) Bitch to others about TN drivers can't drive in the snow. Either deal with them, stay at home when it snows or complain about only when your wife can hear it.
3) Talk loudly in restaurants where everyone can hear your 3-4 tables away.
4) Be mean to your waitresses.
5) Tell people soccer is better than football.
Do:
1) Go around & introduce yourself to your neighbors.
2) Be polite, even to jerks.
3) Realize that the saying "bless your heart" is NOT a compliment down South.
4) Slap a NRA sticker on your car/truck.
5) Buy a box or three of Girl Scout cookies from the neighbor kids when they sell them. Those kids WILL remember who did & didn't when they grow up.
6) Sometimes ask for advice from others, even if you know how to do something. No one likes a "know it all yankee".
7) Root for UT, even if you hate them. Know to talk sports, especially college football. It's not a religion down here, it's MUCH more important.
There's others but these should get ya through the first few months or so.