Eyes being constantly rolled to the side
Men who insist on correcting women whenever they make a grammatical or factual mistake in conversation with another woman will frequently go to great lengths to make you think they have expert knowledge when in reality, they do not have any such knowledge.
When it comes to premenstrual syndrome (PMS) and menstruation, very few women will listen to men’s advice. Please don’t take this the wrong way. Personal experience is the best teacher, regardless of how much you think you know about the topic. Nothing compares to it. If you are truly curious about the experience, I’m sure someone can construct a pain simulator for you.