To comment on a blog post, follow these steps:

  1. Navigate to the blog post you want to comment  on.
  2. Find and click the Comment button below the body text of the blog  post. A counter displays the number of comments already published to this blog post.
  3.  
  4. Clicking  the Comment button expands to display the commenting  interface. Type your comment in the Comment field,  and click the Add button.
  5. Your comment will  appear after the other comments on the blog post.

Notice that the full visual editor is not available for commenting on blogs. However, you can still spell-check your comments.