How to use the boost

The boost is a bit hard, you need to jump to the ledge (Ctrl while jumping to it),then after you're on it, look a bit to the left,then jump to the wall while holding shift and right strafe key,doing it will make you stay on the wall, it will automatically move forward,but will make you fall unless you press the backward strafe key every 2 seconds,it will take you some time to make it work, but it will :)Enjoy!