Step 1: Practise a full 360° rotation around your ax on flat ground without a scooter.
Step 2: Try a three-sixty on flat ground or out a flyout with your scooter. It's very important that you turn your head and your shoulder in the direction you want to spin. It's also imortant that you stay on the scooter and not jump away mid-air.
Step 3: If you can do them safe. Try it on gnarlier features like boxes or spines.