My strategy is to keep talking about it, and also look for a way to register users myself and assist in the onboarding process.
I think this would require being a witness, I'm not exactly sure how account registration and Steem blocks work yet.
I talk about Steemit quite well to people I host and people I meet - as I build up my own blog it'll become easier to sell to people. What would help me bring them here is assistance in creating their accounts.