After making your own facebook fan page you need to attract more people to it. When someone likes your page, they marks the "Like" button and he/she is already " an engaged fan". All his friends can see that he/she likes your page - these are the so called " potential fans". When the "engaged fan" tells his/her friends about your facebook fan page and because of that you get more fans or app users then his/her status is " an advocate fan".
"Purchasing fans" is one of the most important steps you can take for your business - these fans not only give you full access to their personal information on facebook but also they may have already purchased from you. In addition to increased sales, brand or product awareness is also a bonus.