Some people are introverted. I have a friend in junior high school. She just never talks to anyone. She says her voice is very low. She will feel uncomfortable when she stands up to answer questions, or for other reasons, that is, the relationship between boys in your university is not good. People may despise you, so they just don't want to talk to you, or for this reason, people think it is useless to socialize too much. People just study hard first and do their own things well. They don't care who they talk to today, nor do they talk to others. After all, the seats in the university are more casual, men and women sleep separately and spend less time with the opposite sex. The above is my opinion.