Go to your Facebook page after you have logged on and click “Build Audience” at the top right of your page. Click on “Use Ads Manager” and click “Create Ad” at the top right of your page. Click on “Page Likes” from the list.
Select your page from the dropdown or type in the URL of your Facebook page that you want to increase page likes for. After you have selected the Facebook page you want to promote, you can use up to 6 different images that will show up for your ad and 90 characters of text. Configure your audience targeting and set campaign pricing and click “Place Order”. It will take a few minutes for your ad to be approved.