If yor really looking for real like, do good pratices with facebook.
Follow some tips
-> Try to add as many as friend to your basic profile.
-> Build your facebook fan page like Eye cathe and informative
-> Post some content on regular basics with Good images.
-> Don't promote your site directly.
- > try to give general infomaton, greating, your view on regular issues in and around you.
-> Use Facebook groups
-> ask friends to like.