Did you chat in class? If you don't chat in class, then I think this class is boring and embarrassing. I think it's normal not to talk about WeChat. After all, everyone has their own rules. If you really don't like it, you'd better change the number. How to judge whether you are a professional or not? Just let the coach show you the professional certificate at first sight. The more, the better. Second, look at the figure, the better the figure, the more training experience.