What exactly do you think will happen if people find out what this is? I am going to assume the role of a skeptic here, and say that most are going to brush it off. Bitcoins are awesome, and truly have the potential to replace paper money someday, but it has less than a stellar reputation thanks to it being known as a currency used for cybercrime. It doesn't help that major players are spreading FUD to manipulate its value. As things stand, Bitcoin still has a lot of room for maturity, and the mainstream will not be ready for it until then. There will be people who will be interested and get into it, don't get me wrong, but they will be fewer in number than those who will not.