How would you know if a girl likes you?

This is a diffucult question to answer. Sometimes their mean, but maybe they just don't like you. All girls express it in difftrent ways. They can be loud and try to draw your attention. They might even not express that they like you at all. Most girls doodle the persons anitials. They stare at you than look away when you look at them. They'll try to sit close to you. These answers arn't going to be 100 percent because like I said all girls are diffrent!!!