Bill had just arrived from the United States to study engineerin

Bill had just arrived from the United States to study engineering at a Chinese university. In the first few days he met and moved in with his roommate Zemin. Over the next few days he noticed that female students on campus frequently walked arm-in-arm or even holding hands .He noticed, too, that students of both sexes, but especially the boys, would huddle around newspaper displays in a fashion of close contact. Bill felt rather uncomfortable and wondered how he would respond if one of his classmates were to put his arms around him.
Question: Why did Bill feel uncomfortable?
【正确答案】：In English- speaking countries, body contact is generally avoided between the same sexes in public. Whereas in China, it is acceptable to have body contact between the same sexes in public. Bill felt uncomfortable because people are less concerned than Americans to maintain an invisible private zone around their bodies which others may not cross. The students of both sex walked arm-in-arm and huddled is much more acceptable in China than in America. This shows that he is also in the dark about Chinese behaviors.