It's not so much the words and phrases, as it is just a completely different outlook. I've come from a decently privileged background in a nice neighborhood where I grew up with kids of some celebrities and athletes, independently wealthy families, CEOs, etc., and so it's always been really interesting to me listening to the differences in conversation between people from that background, compared to more humble backgrounds (which I myself identify with more). People would always talk about their planned vacations out of the country, or how they were borrowing (or already owned) a private jet to just go somewhere nearby.

I think the main thing that really sticks out to me though was when I was working under a retired mildly successful movie director at a theatre playhouse he was running, and some kids came to see a show. They were from a more remote, non-wealthy area of the state (I'm from the US)--40ish minutes out from the state's capital--and were doing some character research for their high school production of the show that our playhouse was putting on. Anyway, someone from the playhouse mentioned something to them about pulling out their phones and so that they could take a picture with the cast and upload it to Facebook or Instagram or whatever, and I kid you not--the kids got the saddest looks in their eyes and a couple spoke out and were like "We can't afford smartphones... So..." And they pulled out like... Nokia bricks. I think ONE kid had a Motorola Razr.

I berated that guy later for being an inconsiderate douche to high school kids. Haha. But it's just the little things that you don't think about until you're presented with it in your face.