So how can the same head angle earn men and women completely different reactions? There are a few possibilities. The first is simple height statistics. Men are usually taller than women, if you hadn't heard. Hence, seeing the underside of someone's chin could somehow work out in women's minds as making them more masculine. Conversely, looking down on a person, physically, would be how a man usually sees women, making shortness a feminine trait, explaining perhaps why no one wants to date the tall girl in every sitcom ever.
But aside from wearing stilts or chopping your legs off, the only option for people lacking height or believing they're too tall is head tilting, which simulates the appearance of tallness or shortness.
Which is why most Danny DeVito films are shot by Roomba.
For men, tilting your head back also enhances, however slightly, the width of the jaw. A wider jaw, according to previous studies, indicates more testosterone. And more testosterone? Yeah, that's what ladies specifically looking for a roll in the hay find attractive.