Easy points
While collecting presents and doing flips, press [Space] to grab the nose of your board. You will double the amount that the presents are worth.
When jumping, do not do both back-flips and forward-flips. Just do one or the other. If you do both you will not get any points.
If you get "Ouch!" on your screen continue to try getting the presents in the air. You can still get points after you die.
Do flips when you can between ramps to gain extra points.