You should know how to Nollie and somewhat flip the board. If not then practice until you can. Note: By somewhat flip the board It has to be close under your feet. Set up for what you normally front foot on nose back foot in middle at 45 degree angle. Go at a speed you feel comfortable with then pop your nose. Then flick the board so it starts spinning a Kickflip. Try to get high above the board the higher you get, the easier this is. In the air try to level yourself out so your balanced then when the board is finished spinning catch it and try to ride away clean. 

Good luck!