[royal__]

I think it's interesting how this makes a distinction about what Americans do, because appropriate social interaction is significantly influenced by culture. I wonder if there's a study or something that explored the variations in social interaction norms across cultures.

[herval]

There's many interesting books on the subject - "the culture map" is a fun and easy read, covering examples on various cultures (and how to create a more welcoming environment by being aware that differences exist)