2. If you don't like someone, change your signature every day. Personally, I think you may want more people to pay attention to him. So I don't think I've met someone I like yet.
3. A boy changes his signature on WeChat every day. I think this boy is impetuous, and his mood and personality are uncertain. He does nothing every day, staring at the signature of WeChat and changing it, or if you have any dissatisfaction in your heart, you like to vent it on WeChat. This kind of person may have no friends in his life, and only vent his inner emotions through WeChat signature.
4, it is very likely that there are people you like, even girlfriends. Maybe you just felt it, either by watching some real people or watching a movie.