Here We most of the people does not reveal about bitcoin to others because we don’t want others earn by bitcoins. This is a true fact. To change this We can spread through Facebook, twitter and some more about bitcoin and its uses. Automatically all will come know about it.
Yes, advertising all over social media is by far the best way to raise awareness. Maybe we can all come together and pay for some advertising ??
Only advertisement would not serve the purpose as people would not trust it unless we introduce them personally to bitcoins, as people have more faith in people around them who are already into bitcoins, as it is said that mouth publicity is the biggest publicity and people would have more faith on the word shared by their peers or family so I believe that personal guidance can make a great level of difference in promoting bitcoins on a larger scale.