I try to invest in coins that have a 'real' use, such as Ethereum, Steem, LBRY, BAT, etc. The fact that you can use them for something other than storing your wealth gives it some extra value and people will have more faith in those coins.

I managed to convince one person to join Steemit so far. I just told him I made $200 extra in one month just by being on social media, something that I'd do anyway. My friend saw the value in it and immediately joined :) He's also looking to diversify his portfolio now that he's already made more Steem than me haha!