If you want to share a group of Favorites, you have to:
1. Go to the "You" tab.
2. Tap on "Favorites". 
3. Tap on the three dots near the group you want to share.
4. Tap on the "Share group" button. 
5. Choose an app and share your group.
Note: At this point in time, the Favorites feature is available only upon Paid Subscription and only on Android devices.
How do I subscribe?
How do I add a group of Favorites?