This kind of problem can't be solved by others. You have to overcome it yourself. In fact, this character had better be changed.
First of all, learn to communicate with people more and learn to smile (important! ), usually willing to help others, let classmates know about you, and be willing to contact you. It is good to communicate frequently for a long time.
Secondly, you can practice oral English and say to yourself every day, "I'm great!" " "My brother was not fluent at that time, so I had to play the role of' Wolf Sister', forcing my brother to sign up for the class debate, and then always looking for reasons to quarrel with him. After a long time, my brother learned to love me, and his face became "thick", so he was less shy. Personally, I think this character of a boy is quite good, cheerful and sunny.
Let yourself try more novel things. Girls want boys to have soft skin and not be too shy. You can let yourself play and try something exciting. Be brave, hehe.
Pay attention to some small details, such as looking at each other's eyes when talking, raising your hand more when talking in class, answering loudly, not being timid when playing games and so on. . . . When someone asks you, "What did you just say?" Don't say "nothing" (my brother is like this, I don't know if you have wood). Say it again. My brother says it belongs to the instinct of timid people. He can't help it at ordinary times, and he doesn't even know that he says "nothing".
This is handmade hamster pudding. Please don't copy ~ please adopt.