As international students or professionals we are used to our own culture and social behavior in our country. It can be a cultural shock for us when we come to America and see certain social behavior exhibited by people. Though we are from other countries, we should not misunderstand American people behavior or behave rude to anyone because they did something that we are not used to…I am not a psychologist or intercultural mediator, I will share my experiences what I think are common and what I felt were different from my home country.