About Pennsylvanians: You've never referred to Philadelphia as anything but 'Philly' and New Jersey has always been 'Jersey.'
We don't go to the beach, we go 'down the shore.'
You refer to Pennsylvania as 'PA' (pronounced Pee-Ay).
How many other states do that??
'You guys' (or even 'youze guys', in some places) is a perfectly acceptable reference to a group of men and women.
You know how to respond to the question 'Djeetyet?' ( Did you eat yet ?)