I think telling a friends and family about this is not enough.
I have learned these crypto's in social medias through FaceBook, there's some one who posted about bitcoin cryprocurrencies and i starting to follow his post and PMed him that i am curios about crypto's. So that was really help me by spreading in social media's about crypto's and become very well known to the people. I keep asking until i found out that one of my friend work here in forum about crypto's and that's the time he teach me via verbal way of teaching.
The best option is social media for bitcoin because we can found new user of the bitcoin there. In social media if there is any person , he is well known to the internet and technology, so by this way we can easily spread the bitcoin in short duration . while if we user other media like TV, it will hard then social media because every user of that media is not familiar to internet and technology. Another good way is to guide our friends and relatives about the bitcoin through our daily life converssions which may be social media or other media.