Non-goblins need to align their second Darkmoon Tiger in a diagonol direction as demonstrated in this vid. http://www.youtube.com/watch?v=X0A_QTBzR-Y&feature=plcp
When you log back in you will be outside the wall, but still on the edge of the ground, thus allowing you to jump forward.
Razorfen Downs 4.3.4 - YouTube