Here is an article which explains how to review. I am uncertain if you have reviewed before so will give you information as if you haven't. Otherwise it would be a system glitch. When going to find a project you want you then click on "Review" and it will bring up the batch for you to review, which shows the indexed work someone else has done. You review by checking their work and clicking in the box to the right of each field. I hope that this helps. It is best to always share your batch as Dellory has suggested. Click on the link below and read the article.