I second Willie’s advice.
Bs 50-50 stalls first, standing up, and then pivoting back in.
It is just a bs kick turn on your back truck on the coping, but with enough speed to get you up on the deck.
When you get the hang of standing up, then you can work on truck position.
Most people want a cross-lock, with your back heelside wheel against the coping. For smaller transitions/low coping it’s not a dealbreaker if you don’t get it perfect, but for bigger transitions and bigger coping you’ll want that extra help getting back in without hanging up.
One you are comfortable doing those two things, then you can start hitting the coping with a bit more speed and a lower angle to help you travel across (don’t forget to keep your weight back of center so that you don’t stick on your front truck)