Have a Contest !

Offer a contest with no purchase necessary to get people to try your product or service and listen to your sales pitch. Be sure to follow all state and federal rules and laws. It's wise to offer one large prize to attract attention and several smaller prizes so there will be more winners. The more winners the more interest and publicity you will generate.

If you are having a drawing announce the time and date far enough in advance so you can have as many people as possible in attendance. They may even make a purchase while they are there and you will get to show off your business while they are waiting for the winners. Make the contest duration four to six weeks but not much longer. Enter any names from entries on a mailing list for use later.
More on different marketing ideas in chapter 2 of my book "90 Days to Success as a Small Business Owner"