English is a universal language and the medium of instruction in school. In New Jersey, it's totally a different thing. One should practice or rehearse so that people there will listen to you and understand what you're saying.
Northern part
Southern part
Eastern part
Western part
Soft
Hard
Twisted
Twang
A soft "ah".
A normal "oh"
A moderate "eh"
A quiet "uh"
Hard
Normal
Soft
Moderate
S
T
U
D
Long A
Long E
Long U
B & c
"wadder"
"wood-er"
"wudder"
B & c
"paash", "pall"
"peesh", "pell"
"poosh", "pool"
"piish", "piil"