If you want to know a girl, you should first know some of her hobbies and interests, then talk to her about some topics, show that you like her very much, and let her think that you two have the same interests, such as reading and drama, and then talk about related topics in a consulting tone. In this way, you will have more and more common topics.
The topics that women are interested in are nothing more than TV series, cosmetics, food and so on. Of course, this has something to do with your own concern for other people's ideas. It may be helpful to cultivate some hobbies related to girls when chatting with them, such as traveling and wearing. When chatting with girls, pay attention to your posture, don't scratch your head, have a moderate tone and speed, and have a natural expression.