1) Each post that I create gives each reader the ability to post a comment without logging in or setting up an account. You can post a comment by simply listing your name or even as an anonymous person. For instance, the post called: 'Ulysses' door bell rings' has an area below it that reads: 'POSTED BY DENVERETTE AT 3:19 PM 4 COMMENTS'. If you go to the "4 COMMENTS" area and click on it, it'll take you to the area where you can write a comment entry.2) Under the comment entry box there is a drop down menu that allows you to identify how you wish to be listed as a commenter. You can list your name, google ID, among other options. Once you write your comment, just hit the button "Post Comment" and you're done!
Hope this helps. Thanks so much for letting me know!