Chris, just tell them we have free pie... :giggle:
But seriously, in recruiting in the past I've relied on two methods: Handing the owner a business card/introducing myself to the owner, or putting a card under a wiper blade. When talking to a real person, I always make sure to have my phone so I can show them pictures of my truck if it's not nearby. This way they know you're a legit Hummer-nut and not just some creeper at Walmart trying to swipe their Oreos when they're not looking. (Ok, that last part is speculation...but you get the point.

)
Some people, you'll find, simply drive a Hummer to go from A-to-B, and have little interest in joining a club/a forum/socializing with anybody at all. (As sad as that is.) I've gotten some really confused looks when introducing myself to people -- they're like, "yeah I drive a Hummer, so what?" It's like they've forgotten they drive an enthusiast's vehicle and they think they're driving a Lexus RXBland... A lot of recruiting trouble is simply the person you're dealing with, and nothing more. Finally, some folks just don't understand what a forum is, and they don't have interest in them. Most of us are on these forums to socialize, of course there is a fair amount of data sharing and so forth, but primarily, a forum is nothing more than a place to "talk shop".
tl;dr The best you can do is be genuine, smile, shake their hand, give them a card, and tell 'em to have a nice day.
PS: For those of you curious, tl;dr is means "too long; didn't read". I just learned that the other day.

Happy recruiting! :cheers: