The only way you can learn it is in your skill point menu or falk to Speigel something he will max all your avaible 4th job skills to max
first goal 30 posts [x]
Second Goal 60 posts [x]
Third goal 90 posts [x]
Forth Goal: Get 120 Posts and become a Moderator/Webmaster. [X]
Fifth Goal: Get 170 Posts.[X]
Sixth Goal: Get 250 posts.[X]
Seventh Goal: Get 300 posts.
Last Goal Aim For In Game GM To Help More People.