i want to learn this, can anyone help? please

Sure. Run and jump off a building. If you survive climb back up and do it again after your legs heal and this time try to do it without breaking them. Repeat until you're a pro.

Or I suppose you could just avoid all the pain and suffering that goes with that and go to http://www.parkour.com/

Either way you'll probably end up in some pain and suffering most likely but at least this way you can not sue me for telling you to go jump off a building and being gullible enough to do it.

Good luck.

i will try, that is all i can do, thanks for your feedback sir.