Kickflips are one of the most basic tricks in skateboarding.
first start off with your back foot how you want it. put your front foot below the bolts and have your heel hang off a bit. pop back on the tail. once you pop push your front foot up in a diagonal type way so it rolls off the nose. suck your legs up. and once you see the grip tape, pound your feet on the board.
the main problem with the kickflip is that your front foot doesent stay on. TRY to pull it back. it wont come back like magic!!