Just create a group of your fan page of relevant niche and invite the peoples to join it and update your fan page as much as you can.
If you wanted to have a great start even in the first weeks of your small business, find out what your competitors are up to. If you know their selling strategies, you could top whatever they are offering to the shoppers and you could also lure more customers if you out shadow their stores. Know first how much you are going to spend for your business will never have to experience bankruptcy. Plan each details needed and as much as possible, list down the even the little things you store will be needed so you will have a good track to where your budget is going. Find out what kind of products dothe customers demand so you could out shadow their stores. Top whatever they offer to the shoppers so you could beat their selling strategies. And have enough knowledge about the products that you wanted to sell so you could showcase it better to your customers. If you do this, shoppers will gain huge trust from your store because they know that you will always lead them to the best deals.