Pull your knees up into your chest – How far you actually want to pull your legs up is totally up to you, but the higher your feet go, the higher your board will go too. By the way, the highest recorded preferred stance ollie-pop is 45 inches, done by Aldrin Garcia, and the highest switch stance ollie-pop is 40.125 inches, by Gavin Caperton. And if you’re going for endurance rather than height, the record for most consecutive hops is held by Rob Dyrdek, who did 215 of them in a row on his TV show Rob and Big. So those give you something to shoot for.
I found that my problem was unclear instruction about the timing between jumping and popping. One day when I was watching a slowmo ollie video though, I noticed that the skateboarder already was beginning to jump (at least his body was already going in an upward motion) before snapping the board off the ground. That was a critical change I needed to make in order to get it working. I had been trying to pop the board while all my weight was still pushing down on it (kind of an obvious mistake, but I somehow overlooked this). Hope this helps somebody.
Get used to sliding your front foot up the length of the board. Once you’ve perfected lifting the front of the board up, use your back foot to hold the board in that position. Slide your front foot up the board towards the front, rotating it as you do so. The side of your foot just below the toes should grate along the deck of your board until it reaches the top.
In 1978, Alan Gelfand, who was given his nickname "Ollie" by Scott Goodman, learned to perform no-handed aerials in bowls and pools using a gentle raising of the nose and scooping motion to keep the board with the feet. There are numerous references to Alan Gelfand's Ollie with most notably pictures in the 1970s skateboarding magazine "Skateboarder".
As you jump into the air, your front foot needs to roll slightly inward, and with the outside of your foot, you want to guide the skateboard as it flies into the air. Some people describe this as dragging the side of your front foot up the skateboard – that’s more or less what is happening, but what you are doing is using your shoe and the grip tape on the board to pull the skateboard higher into the air with you, and guiding the skateboard to where you want it.
There are actually several types of skateboards but the most common ones are the longboard, cruiser, and carve skateboards. A longboard is usually at least 33 inches. It is a great mode of transportation and works well for cruising around. The cruiser also works well as a mode of transportation but many consider it more beneficial as it has a shorter skateboard, which promotes ease in transporting around.
To get higher ollies, I would suggesting resting your back foot on the very end of the tail and the front foot in the middle of the deck to allow for more slide. Popping as hard as you can and catching your board in the groove of the nose with you ankle practically resting in the groove will level the board out in the air. after this initial movement slide you feet back to the bolts on the tail and nose to ensure a clean landing.