As you receive comments on videos, you may need to return to the Comments tab, under the People tab, to moderate them.
When on the Commenting page, you can read all of the comments users have posted on your videos. If you want to engage with your users, you can reply directly on that page by clicking Reply. If you would like to see where the comments are, simply click View, and you will be taken to your video's page.
You also have the option to delete comments which you can do by clicking Delete. This is useful if comments go against your business ideals or if they aren't appropriate.