Should be pretty self explanatory. Just a couple of things to remember. When you get to a ramp, do not left click to jump, just skate on, and after takeoff click to do flips, or/and move mouse left/right while in the air to spin in that direction. You can get more points if you do combo tricks ( do a spin and just before it's complete do a flip. Make sure you stop moving sideways or complete all of your tricks before you land, otherwise you will wipe out.
If the point of view bugs you ( want to see more ahead ) just skate a different line, slightly to the left or right, don't stay in the middle.