I'd wager that not many of us often have the opportunity to find out what foreigners coming to live in the U.S. find odd about the experience, or at least not directly from foreigners.
Here's a listing of what sixteen people found rather odd about our country, as they came to school and to work.
For my to my local friends: Note the statement by one person that M.I.T. students often wear pajama pants to class. M.I.T., people. That fashion faux pas is NOT a local West Allis invention.