A cross cultural situation observed!

At the university one can find a student from every part of the globe. And because of such multifarious people cross cultural differences are expected for sure. Since I have been here, I have observed several differences. The one I'll mention here is about the personal space. I have talked to many American and many Arabian friends here. Something I observed was that Americans prefer standing at least five feet a part while conversing, whereas Arabians prefer being closer. I didn't notice this on my very first meeting with them. It took me time.
I have seen several such differences in terms of religion and body language too. If one isn't aware about them, they surely lead to misunderstandings and to avoid them one should be aware of the trend of every culture.