The weird part about been back is getting use to the word 'cunt' been used excessively, for everything and as a form of endearment, especially in blue-collar work. I've tried to explain this to international friends.. I swear we're the only Anglo country that uses that word in a completely different way.
My sister has lived in the US on and off for about 20 years, and i dropped a c-bomb in telling her an anecdote a couple of years ago, and she looked really offended and didn't say anything. And she says "fuck" etc.
I made the point of doing it again last time i saw her

I think some brits - and certainly some scots - say "cunt" in place of "guy", "person" or "mate"