First, you don't have to fill in any field you don't want to, and you may lie.
Second, unhappily, typing hard carriage returns in the Message box of the guestbook for
the Mark Manning Art Show Web site will have no effect on the way your message appears in
that guestbook.
In order to start a new line, like this, you must first type "<br>"
(without the quotation marks).
To separate paragraphs by a blank line, as you see above and below, type <br>
twice.