you can explain how good btc to them, how much profit they will get, only with their computer capital can produce a little btc and if they seriously do it then they produce big btc by following signature campaign. not at risk
it takes patience to convince people to get to know about bitcoin, most effectively I only explain briefly and at the bottom of the profit to be quickly attracted, because people will quickly respond if what we explain will benefit .. and besides the basic foundation to better understand try open google or bitcoin forum to read it for easy understanding and i just explain what he asks, and i will show the results that i already get from bitcoin to quickly believe because other than theory or practice and see the real and the result too, i am sure that way the people who will join will quickly attract and try to understand and try it ..