You can pay a little attention to the things that girls like, such as stars, TV dramas and food. These should be known by their circle of friends. It is easier to get along with more topics.
Don't be too polite, but keep your distance. This is a matter of degree, you need to grasp it yourself.
Into their circle, into the interior, * * * With more and more friends, more and more interactions, the relationship is getting closer and closer.