1.Slowly roll up to a curb, step, parking block, about anything that you could grind on. (it is hard to do this going fast)
2.Lean back a little, and ollie.
3.Land between the back truck and tail on whatever you want to stall on, do a nose grab as you land. (your board should be at near a 45% angle.)
4.Hold for a second.
5.To get off jump backwards and pull your board under your feet, by the nose with your grabbing hand. Keep trying' and you'll get it.

Good Luck!