[听力原文]11-15When you talk with new friends, usually there are three parts in the conversation. The first part is the greeting. In this part, you and your new friends will greet each other and tell each other your names. The second part is the conversation itself. Usually, a conversation with a new friend is just "small talk". That is, you talk about unimportant matters, such as the weather, sports, entertainment, and/or other interesting things; it’s unusual for new friends to talk about private or unpleasant things, such as personal health problems, religion, or polities. The third part of the conversation is the leave-taking part. In this part, .you tell your new friend that you’re happy to have met him or her, and then bid him or her goodbye. What is one thing mentioned as an example of a private matter（）are mentioned as an example of private matters.