I noticed that when I laugh with what a woman says she slightly looses interest. Even if the laughing of mine is sincere and not enforced the scale of interest drops a little bit but when I keep my frame with a smile she likes it. In contrast when a woman laughs with what a man says he feels more attracted to her. Although a cool smile is positive I don’t think laugh provides any benefit to the man. Maybe it’s a feminine way of flirting and that’s why women don’t like it when men do it. What’s your thoughts?