You can introduce bitcoin to friends and classmates around you and tell them the principles and potential of bitcoin, and bitcoin is constantly innovating. In such a way to spread bitcoin to the world, I think it is more reasonable.
Starting to introduce bitcoin to friends is one of the easiest way to introduce or to support bitcoin because it is a good step on introduction to bitcoin as a form of investments as they could also have an opportunity to earn and to gain profit in the future. I think it is much easier to informed closest friends as a form of peer group promotion.