1. Click on the blog title that you would like to comment.
2. The 'Post a comment' field will pop up, now enter the applicable text.
3. Select a proper profile in the drop-down box, for example 'Name/URL' (URL is optional).
4. Submit the post ('Post Comment').
5. A word verification step will take place (in order to combat spam blogs). Enter the applicable characters and press 'Finish'.