Hey Robin, Chris is right. However, your American friends might think it "very cool" if you brought them gifts that were unique to your country or at least representative of your country. Perhaps they will never have a chance to visit China, so your gifts may be the closest they come to it.

Hi Robin, your American friends will be thankful for any gifts that you bring. The important thing is that they come from you! In general, we give inexpensive gifts to friends. Cards, chocolate or nuts, etc. Something small.