I actually have a Youtbe channel that talks about Bitcoins, cryptocurrencies and blockchain technology in simply, laymen's terms. And the way people are subscribing my channel, I believe I am doing something right. As a teacher, I have experienced a picture or figures based approach works very well in introducing new and complex concept. I Since there's lot of multimedia tools I used them in my clips to explain cryptocurrencies, there operation and what we can do with them. If I don't have access to them then I just try to relate the concept to well known examples that everyone knows. From the people I have explained these concepts everyone seems to get it.