Choosing "Leads" as your ad type in the Facebook advertising panel.
Let’s start “creating a new ad” in Facebook (if you’re not sure how to use the Facebook advertising environment, watch for an upcoming class showing you how).
When you click Create Ad, you will immediately go to the panel below:
Once you click "Lead Generation, the window will expand, asking if you want to create a split test. If you are not sure what a split test is, don’t mess with that right now. Just click Continue.