How to chat?
1. If you feel that you can't go on, you will avoid answering and start a new topic.
2. If you have some moral problems, waste the test and try to throw them back. For example, whether or not to do it, how to do it, ask back.
3. Don't directly say some hurtful words. It's better not to say them. Don't hope to say such words as "sorry, I speak more directly" after saying them to reduce the harm.
4. When we talk about real life, we can talk about some extended problems, such as whether we can cook, what we like, and so on.
5. Talk about the meaningless reality, talk about some emotions or things you don't know. Think of a way to let the other side to talk, you must respond to the other side, if it is said that it is not interesting.