What if I can't chat with girls?

When chatting with a girl, all you have to do is always find out what the girl means and guide her in the direction that the girl is interested in.

Be polite and smile before talking to anyone. Maybe grace may become a good impression like gentlemanly grace in her eyes.

Pay attention to control the tone and voice when you speak. Generally speaking, girls don't like boys who speak too loudly, so try to be gentle.

Actually, you don't need any professional knowledge to talk to girls. You can talk about family, entertainment and small things around you at will. Talking about these topics can make both sides feel relaxed, not as heavy as talking about professional topics, and you don't need to find a topic specifically.