Increasing your number of likes on Facebook is a crucial element of social performance. Opinion Stage now allows you to gather Facebook likes in polls, quizzes, and surveys.
Gathering Facebook Likes
When you use this feature, users are required to like your page on Facebook before they are able to view the results of the poll, quiz, or survey. (There is also an option to gain Twitter followers and mentions.) You’ll find this feature under the Social section in the poll/quiz/survey creation forms.
Here’s an example of a poll that gathers Facebook likes: