Stance
To ollie, place your back foot so that the ball of your foot is on the tail of your skateboard.
Place your front foot between the middle and front trucks of your skateboard.
If you feel comfortable placing your feet in a different stance , no prob's.
Get a slow roll going and go for it .Don’t go too fast to start with .
The Pop
When you are ready to ollie, bend your knees .
The more you bend your knees, the more pop you will get and the higher you will go.
Slam the kick down nice and hard.
Simultaneously jump into the air, off of your back foot.
This part is the key, and takes a little practice to get right when first learning .
Front foot
As you jump into the air, you need to roll your front foot slightly toward the nose , and with the outside of your foot,
You want to drag or scrape the side of your front foot up the skateboard
You are using your shoe and the griptape on the board to cause friction and that in turn pulls the skateboard higher into the air guided by your front foot.
Once again like anything , practice is required to get it right so if you are having difficulty be patient , you will get it.
When you jump in to the air off of your back foot , be sure to pull your knees up as high as you can get them. Try to touch your chest with your knees.
Imagine a rubber band , the more you stretch it the further it will project when let go .The same happens when ollying
The more you crouch down before the ollie, and the higher you get your feet,
the higher your ollie will end up being.
When you reach the peak of your ollie , the highest point .
To level out the skateboard underneath you.
Tap the front foot down a little to stop the boards upward projection and catch it with both your back and front feet before returning back to earth.
Landing and rolling away
Next, as you land, bend your knees again to absorb the impact.
Bending your knee's also helps you stay in control of your board