Ask HN: What Incentive's do you like?

What are different incentive strategies do you like that will get you to use a certain mobile app feature?

-Power (Status and Badges) -Money (Through Points) -Social Recognition (Badges) -Ego -Goodwill

I am creating an app that has a feature which requires a user to tag a venue as "interesting". but trying to figure out how to get them to do this behavior. What has worked in the past for you?