1) This is the easiest sliding trick there is so you better learn how to do it.
2) Position your front foot so its just covering the first 2 bolts of your front truck.
3) Ride up at a very slight angle to whatever. Ollie into it and turn 90 degrees. Push your nose into the obstacles.
4) Once your nose is on it stand over the object so your board doesn't slip out.
5) To come off push your nose forward 90 degrees and roll away.