What can tell a person's age?

In fact, there is no standard answer to how to judge an age, and we can only make a preliminary judgment from several aspects. The first step, look at clothes and face, you can probably tell a person's age, especially when wearing this piece. Some of them are well maintained, and the age may not be visible on their faces, but they are generally similar to the actual age. For example, a 30-year-old woman, no matter how young and cute she is, will make a person's dress different from her life experience. 30-year-old women are generally married, just starting or peaking, and the quality of clothes is not good. I'm not good at making deep judgments. I just judge my experience according to my own observation and life experience.