Facebook Likes Secret: Invite Users
This discreet – and surely underused- feature on Facebook pages lets you invite people who liked your posts to also like your page.
To access this feature, simply click on the number of likes under any post on your page. You’ll automatically get a list of every user who has liked the post, and, on the right of each user’s name, you will see a button that shows if the user has already liked your page. If a user has not done so yet, you can invite him/her with just one click of a button!