You are as right as rain @aggroed I was just recently talking about us not being Secret agents of Steemit. Bring it up in casual conversation with people you meet, of course make sure you don't sound like an Herbaloid, brake down the walls from the get go.
I've successfully invited 12 people just last week, a few of them are already becoming Steem believers. But this is it... just talking about it to one person a day can make a difference.