9. When he protects her from getting crushed on a crowded train.
In Japan, trains get jam-packed during rush hour. Getting on a crowded train in Japan with your girlfriend gives you the perfect opportunity to show off your manliness. “I wouldn’t mind getting on a crowded train again,” said a woman in her 20s. Japanese women relish the feeling when their boyfriends are protective of them. You can tell her something like, “It’s my duty to protect you.” She might boast for years to come that “she will never find a boyfriend as reliable as you.”