Possible answers:
1). Select a rail or wall to monkey vault over. You don't have to be able to jump over it, but pick an obstacle you can vault over normally with ease..
2). When you know you're fully warmed up, get to the vault. If you're planning on doing parkour with your legs back and your butt very specific about the vault..
3). Also, do regular, for an example. Be careful not to hit your butt while doing parkour! Place your left hand on the racquet..
4). From there, you can focus on all the parts of and body you need to lift. Do parkour before you teach your monkey to vault..Choose from options above and answer: What most naturally follows?

How to monkey vault
Warm up.
Spend at least 5-10 minutes stretching and warming up before doing parkour. Do everything, but focus on ankles, legs, knees, butt and shins.
Answer:
1).