The ollie is the basis for almost every skateboard trick. Nine out of ten tricks require an ollie of some sort. An ollie is simply jumping into the air while the board is gripped onto your feet. Once you master this, if an on expected dog pops out in the middle of the road from nowhere, you would need to ollie over it and keep going.
Step 1: Place your front foot in the middle of the board and your back foot on the tip of the tail(back). This is a great foot placement to make you get height.
Step 2: "Snap" the tail onto the ground with your back foot. Smash your tail downward while jumping up. Once the tail has "popped" off the ground, slide your front foot up from the middle of your board toward the nose(front). You have to get your timing perfect, to master this trick.
Step 3: Leveling off. Once in the air, sliding your foot levels your board out. The "foot slide" is the process of scraping your shoe upward and forward across the grip tape toward the nose. You do this after the tail tap and jump.
Step 4: Land. Just remember always keep your body centered over your board.
That was just a preview of one of the few tricks I will teach how to do on my page.