If you do not know how to use a syntax, you can use the Syntax Help function. The Syntax Help is displayed by clicking 
from the page toolbar. When being clicked, a lateral pane beside the editing area will show all the Confluence syntax information. The lateral pane can be hidden by clicking 
in the upper right corner or by clicking again.
You can click 
at the bottom of the short Help Tips form to open the Full Syntax Notation page.
You can insert icons, emoticons to emphasize the content. The usage is described in the Full Syntax Notation page with example so you can easily remember and use them.
Example of emoticons and icons
