Posting response/comment

I can't figure out how to write comment on posts! Help.
Thanks

You can read a comment someone post. There is a "post reply" button above and below the comment window. Select the "post reply" button and start typing in the response box. I you want to ask a specific question of the forum, select the "post a new topic" on the main page. After typing the question, select "submit" button.

Sheriff