To do a 360 Kickflip, follow these instructions.
1. Of course, you have to do an Ollie.
2. Mid-air, you do a Kickflip.
3. While doing the kickflip, you turn your board 360.
4. To make your board spin 360, you kick your back foot behind you, while doing your Kickflip.
5. Make a smooth landing, and try not to break any bones.