If you are in East Texas you might hear these:
"You do'in alright?" - A common greeting
"Cook up a mess of __________" - Could be a "mess of greens", "mess of fried okra", etc.
a "pallet" is a bed you make on the floor
a "tank" is a pond
You know you are in trouble when someone tells you that the two of you are going to have a "come to Jesus meet'in".
and if you are in DEEP East Texas you might hear someone say they are "up under the Doctor". This means under a Doctor's care. I almost "fell out" when I first heard that one. *grin*
I remember when I was a car salesman and a customer on a test drive asked me "What happens if I mash this button?" I replied, if you mash it you will break it, but if you press it, it will turn on the air conditioning.