So, key points from the video:
You are looking for waves that are very steep and green and ideally not breaking or barely breaking on the top. This gives the most consistent take off and offers the best runway to launch you.
You should be approaching the wave at medium to medium-fast speed. A full on sprint will likely make you miss time your stroke on the next step, and just drifting in won’t launch you off the top of the wave and produce that big air.
As you are driving to the top of the ____,do a big forward stoke while simultaneously pulling your knees into your chest. This will help you clear that wave more vertically.
As your boat has reached its apex and just before it starts falling, you are going to push with the back face of your paddle on the upstream face of the wave. As you imitate that push you will start snapping your boat over the top of you. This step needs to happen as one fluid movement.
Start pulling later.
Try to pause before you snap your boat over your head to let your boat get all the way out of the water.
Good luck and have fun with it!