When a woman laughs a lot at your jokes, even mediocre ones, she's probably attracted to you. Attraction makes her find you funnier than you actually are. Her laughter is a sign of romantic interest.
This is just one of those funny things about the way God made us. When women think a man is attractive, they tend to think your sense of humor is hilariously hilarious. And so you become a very funny man. So if you notice that the women around you are always thinking you're really funny, even if it's not really that good of a joke, it's just kind of an average joke, but women laugh around you a lot, that is a key sign that it's because they find you very attractive. The attraction amplifies the enjoyment they get being around you.
