Well for me, when I read first the question, there is only thing that comes into my mind that answers this question, in which how can we make crypto into viral, and that is, make and spread several fact news, announcements and updates about crypto currencies which positively influence the community. A good great and positive news will make more people to become more curious regarding the crypto and will eventually engage to it.
fact news will not lure people they will just enlighten on what and how crypto works it is better if they will engage for real, it will be hard to do that because it really needs the cooperation of the government and the well known establishment.