Why are you so happy when you knock cp?

The first one is that it may be someone you like, and then you will be happy if you knock on his CP, and then you can know many secrets. It is also possible to see him happy, and then you want to be happy, and then you feel very happy. You will secrete dopamine, then your adrenaline will surge, and then you will be happy. Most likely, beautiful people will feel beautiful together. Even if the object is not you, it is enough to make the person you like happy, so you will feel happy. Branch CP may also be a form of entertainment in our daily life. Satisfy people's curiosity and conform to people's gossip.