How to Kickflip
Okay, so you want to learn to kickflip. You need to have a good grasp on the basics such as ollies, pop shuvs and just riding your board comfortably. Your foot placement: You want your front foot pointed towards the nose and your back foot in a comfortable popping position. When you go to pop, side your foot like you would an ollie, jump with the board and instead of keeping your front foot on the board flick it off the side. Try to keep it under you and don't be afraid to land on it. It will take time to learn like any trick. Best of luck, below is a picture of all of the motions in learning a kickflip.