Well, you could always take a page out of my book, and talk about it INCESSANTLY until they have to know what it is.
Uh, I do know of someone who has been doing that for years (and still is), and completely turned a couple of my friends off from iidx. It's actually pretty sad. I feel the reason why I still play is because I'm one of the people in our circle who really doesn't interact with this guy at all.