See content from your advocates on the Uploads and Library pages with a heart indicator on the tiles.
How does a contributor become an advocate?
Open an upload preview modal
For Uploads this can be from the Uploads page or the Library
For an edit this is from the Library
Scroll to the contributor section and the bottom right-hand side
Click on the green information icon which will open up the Contributor details
You will see a settings section which has a toggle for Advocate, toggle this on
This will add a heart icon to the contributor's avatar (name or photo in the circle next to their name), it will also add a heart icon to all uploads and edits from this contributor