The leaderboard can be accessed on the top right corner of the screen as shown below:
How to create a point-based leaderboard?
You can configure the points against each triggered event.
Dashboard> Event Engagement > Leaderboard > Set points for each activity > Select the check mark. Leaderboard activity will be updated.
How to create a reward/award for people on the leaderboard?
Dashboard> Event Engagement > Leaderboard > Click on the award Icon > Enter Title > Enter description > Save