cool trick i learned. you can hide a message behind an emoticon so when a person puts their cursor over it, it will show up.  its called a mouse over.

 

here is how to do it.  choose an emoticon for your message.

then on the bottom of the reply box, check the box that says, use HTML to create your page.  find where it says   IMG height=19    leave a space after the 19 then type  alt="your message here"  be sure to add the equal sign and the  quotation marks and add your personal message where it says..your message here.

then uncheck the HTML box, finish your mesage and send.  if your words show up after unchecking the HTML box, then you done it wrong. 

 

ps..place your mouse over the emoticons in this message to see what i mean.