To kickflip, one of the hardest tricks to learn, you must set up with your back foot on the tail, and your front foot at an angle on the heelside of the board facing towards the nose. You must then pop and slide your foot up. Instead of stopping your foot, you must take it off the top of the board before the nose with a flicking motion so that both feet are in the air while the board spins underneath you. Wait for it to spin the full way then catch it in mid-air with your feet and land.