Crouch down – While you’re standing on the board with your feet in the right position, crouch down closer towards the board. Don’t turn into a hunchback here; keep your back as straight as possible and don’t stick your rear out too far off the board, otherwise you’ll mess the whole thing up. Stay on the balls of your feet too; if you’re more on your toes, you’ll actually move the board in air and land off of it, and no one wants that. If you need to readjust your feet before you jump, just do a little micro-jump to reposition your feet, or shuffle into position. The first way is easier and faster, the second is more awkward and can mess up your shoes.
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.