To see who of your direct reports are part of an evaluation cycle navigate to
Team
> Team Reviews in your sidebar.
You'll then see the following view:

Any reviews that your direct reports are a part of will show here. You'll also receive a notification when they are added to a cycle.

Click on any of the cycles to view which of your direct reports are involved. You'll then see the following view:

Here you can see the names of the people included in the particular cycle and their progress in it. 

If you have any of your people have requested peer feedback you can approve or decline it by clicking 360º requests as highlighted below:

You can learn more about 'Review Cycles' here

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