I think there's a big part of this that's "be the change you want to see"... Start posting about non-bitcoin stuff, and engage in discussions like that.

I'm new here, only been on this a few weeks. I'm not a "bitcoin hacker" but tech-comfortable enough to get myself set up with this. Things like this always move in phases. You start with hackers, then you get more generic nerds, then you start getting hipsters, then the general population.