Trouble, I am twenty-one, introverted and slow. I don't know how to refute when others hurt me: I dare not talk to girls when I see them. ...

Communicate more with classmates and friends. When I tell you to go out to play, you go with me. Let go. Listen to what they usually talk about, such as NBA, animation and so on. And you will know more about this. Speak slowly. You won't appear dull and introverted in front of them, and they will think you are good at talking.

You have to find out what they like so that you can have something to talk about. Without common hobbies and topics, it is impossible to talk about it. If you have nothing to say, you will look dull.

Fear of girls is your psychological problem. Don't think that they pay special attention to you. If you have anything, they will laugh at you. It's nothing. Say what you want to say. Most people don't like being too honest, just be happy. Without saying a word, how unsociable a person is there. Come on!