You’re in Facebook and you need help.  How do you find help?  Just click the down arrow and more menu choices appear.  Of course.  It’s so obvious.

It is bad interface design to conceal controls.  Not only that, the fact that Facebook hides controls they don’t want you to use (namely Log Out) is a display of arrogance.  I wouldn’t be surprised if Facebook has hired old software designers from Lotus Notes.