Locate the project that contains the reviewed proof, and click the Project button on the right. You'll see the Project folder and the proof that says "Returned: Actions Needed." To look at the reviewers' feedback, click the Reviews button the right. This will bring up a read-only version of the proof. You can see the approval status on the right, along with any comments the reviewers have made. If any mark-ups have been added to the proof, you'll see those comments on the right, as well. You can also change the way the mark-ups are viewed, according to your preference.