I don't think it's necessary to hide your IQ. One of the highest manifestations of intelligence is humor. It takes a lot of brains to think up funny jokes. A man who is funny to women has a lot of game, and women recognize that he is funny because he is intelligent. So long as your intelligence is employed in a way that fits within game, there's no reason to try to "hide" it. This is all a very complicated way of saying that having game takes care of any awkward manifestations of having a high IQ.
Also, let's face it. There are some girls out there -- including some hot ones -- who are very smart. Women are more attracted to a man who they believe is smarter than them (read hypergamy). For those women, displaying your high intelligence will make you more attractive and hiding it will make you less attractive.
Also, let's face it. There are some girls out there -- including some hot ones -- who are very smart. Women are more attracted to a man who they believe is smarter than them (read hypergamy). For those women, displaying your high intelligence will make you more attractive and hiding it will make you less attractive.