I think there are some easy social cognates for sure but I think there are also lots of differences in attitudes and speaking styles. Social expectations, public considerations, govt expectations, etc etc
I woke up in my quite used to be a farm town exoburb, went to the shuttle to JFK through Manhattan, got on a flight to New Orleans, drove two hours to go visit my swamp living inlaws. So I am sitting on their boat and it just occurs to me that this is all one country.