Generally, these girls are very introverted, because many are good girls. They are strict in upbringing, quiet and introverted, slow in heating up, will not take the initiative when they meet the opposite sex, and there will always be an appropriate sense of limit distance with the opposite sex.

Whether you know the opposite sex really has a lot to do with your personality. Girls with this personality are not good at communicating with the opposite sex and are very stiff, but they have no problem getting along with same-sex girls. In high school, although there were few boys in our class, there were many extroverted girls who knew many boys in other classes, and they were all close friends. But introverted girls don't know the boys in other classes, and even many boys in our class probably haven't said a few words. From small to large, familiar boys are limited to deskmates within two meters.

In addition to internal personality factors, there are also environmental factors.

This kind of girl has a small social circle, is more homely, and knows few boys, so there is no opposite sex around her.