Here is a book long awaited for by international students asking that question as well as many Americans baffled by their own attitudes and behaviors!

Look for yourself at the sample content of the book by this title, given at: http://www.enculturation.org/Sample%20Content.htm

This book is "a perfect little gift book for your international friends." It starts fascinating conversations, and is built around 100 American sayings like, "Just do it," "Time is money," and, "Shop till you drop."

You can order it online. It is a good investment for ISM workers and some of their students asking this question!