When A first came to the United States as a volunteer, many parents and colleagues were very enthusiastic about him and told him to visit our home some day. A is very happy. He thinks americans are very hospitable and easy to get along with. So he waited for an invitation from parents and colleagues. But after a semester, no one invited him. He wondered why americans don't keep their word. Or do they not like me? So A decided to invite them. He told a colleague that he would come to my house this weekend. The colleague was surprised and then politely refused, saying something was wrong with his family. A was even more frustrated. He felt he couldn't fit in with the American community. It was only when he met a Chinese that he realized why. 

Americans are really enthusiastic, but they also pay great attention to their privacy and don't invite strangers to their homes. They also don't go to unfamiliar homes. Americans are superficially enthusiastic, but due to the differences between Chinese and American cultures, it is difficult to truly integrate into them. The Chinese, on the other hand, are hospitable people, especially old Peking who live in quadrangle dwellings.