I am a junior high school student! Boys. My deskmate is a girl. She likes you. How do you behave? Then how can I go after her!

From a psychological point of view. Pay attention to your skills when you speak. For example, you invite her to play, but you can't say, can you play with me? This is obvious, because girls may be shy and won't promise you because of face. But you can change it in another way, for example: I heard how you feel about something, so did I, and we can be together. . . Here's the thing. If she likes you, she should make more eye contact with you. She likes talking to you, and sometimes she is shy.