That's a psychological question worth analysing. Men tend to be more arrogant and selfish than women and talk more about themselves. In Japan the role of women is to listen and praise them. That's why hostess bars are so numerous in Japan. That's also why women are often kept at tea-serving positions and must accompany their male superiors for a drink after work. Well, that's another problem. I'll just ask you if you do believe or not that men are more inclined to talk about themselves or not.