I've been part of GDI for several months, but never did anything with it. I then started promoting, and BAM! Within two weeks I have six active and fifteen trial affiliates, and even a few level two sign-ons. This is amazing - better than any system I've ever tried before, and I've tried just about all of them over the last fifteen years!
Use business cards and hand them out like candy; put them on cars, hand them out to friends and family, anyone who asks what you do for a living, or with your tip at a restaurant. Free classifieds are also a wonderful way to drive traffic. Follow up all leads immediately and look to your sponsor for as much advise as he or she can give! Persistence is key!