An article I was pointed to by a friend. Apparently derived from responses on a site called Quora, which requires registration (through Google or Facebook, IIRC) to actually read, so this is nice for those of us who don’t want to do that.
Interesting stuff; there are some definite patterns and commonalities between responses. I’d love to teach a class or run a website explaining some of these to foreigners (in terms of origin and why it makes sense in the American perspective).
Anyone in the same situation got others to add?