What is the most logical next event?

How to comment on a photo on facebook
Go to one of the " facebook " website links provided to you within the sources section of this article.
Click on the " back to facebook " link, which is displayed in the upper-right corner.
This action will take you to the facebook login page.
Type the email address and password for your facebook account into the blank fields displayed in the top-right corner of the login page. Navigate to the photo you want to comment on from within facebook.