I have set up booths at farmers markets in my area. I have a signup sheet for people to put their name and email address to get more information.
I also have give sample shots of Veriuni liquid vitamins to create interest.
Finally, I run a free drawing for TripleClicks giftcards, no more than 5 given away during my day at the market.
I have plans to open booth at county fair and follow same strategy.