Working across cultures

We had a talk a few days back about "working across cultures". Well, it was all about the mentality of people in different countries and how to work with them, interpret what they mean, etc.. However, what is most important is not that people have different mindsets in different countries alone. People within a country can have different mentalities and thoughts too. It should be a team building exercise to make everyone be able to adjust and work with people who may be very unlike them. Take for example my team! Most of my team members prefer to keep things down and don't like being confronted and I, on the other hand, prefer to be confronted[I HATE BACKBITING] and I prefer being open and honest. One of my team mates who attended the same talk, came and gave me the same feedback -that "I had an American mindset". I guess, it should be more of a team building talk than "working across cultures".