At some point a girl is going to test you by doing something annoying or toxic. For example she'll ignore you for a few days or she will tell you that you that you do not match with her. In any case, you shouldn't act defensive or beta. Play it cool and be yourself.

An example could be: Girl: Do you play videogames

Boy: yes I do

Girl: ugh i dont think really go for nerds

Boy: ah ah I ac actually d-dont really play videogames a lot, just in the weekend (failed)

Correction for Boy: yeah im the biggest nerd so i dont think we would work out, I only go for smart girls.(add an emoji so she knows you are just playing and teasing her)

Hopefully you find it useful