I have more or less completely given up on actively recruiting any new non-gamers to my previous D&D games. (This includes non-gamers and ex-gamers who are heavily into stuff like Star Trek, Star Wars, Games of Thrones, etc ...).
Over the years I have found that actively recruiting non-gamers to D&D games, can be very detrimental to the game if the recruiting methods are very high pressure. The more high pressure the recruiting tactics, the less likely somebody will want to play again.
In another scenario, I have found that individuals who owed me some favors, frequently used my D&D games as the easiest most passive-aggressive way to pay me back for previous favors I did for them. Typically these "obligation" type gamers, would just sit there tuned out and not really wanting to be there. As far as they're concerned, it's free pizza and they're just biding their time away until the favor is "repaid". After awhile they just let their character die in a combat encounter or a "save vs. death" type situation, where they subsequently just walk away from the game. After that, I can't argue anymore that they "owe" me for a past favor. (ie. I can't prove conclusively it was all a charade, where they were "tuned out" and just "biding their time" over several months).
I don't think using a lot of pressure to get someone to try something really works well for example take me it is more likely to get me to become stubborn and dig my heals in even if I was interested before.
The gamers I have introduced were people I met through other hobbies like the SCA or Cons. And it was more of just talking to them conversation wise what I had done the past weekend or talking about a book and making an off hand comment that I was going to introduce elements into my game.
I have been at the book store with my gaming books out working on my campaign and had people ask me about it so I tell them about.
I was taking an art class for fun a few years ago and we had to bring in something we collected and talk about it I brought in my gaming books. After class three people came up to ask about it one of them still games.