This is a test of commonsense. Complete the next sentence:

How to ollie
Stand on the board.
Get a good feel for its shape, the tightness of your trucks, and the size of your wheels. Ollies are always easier on a familiar setup.
If your trucks are too loose and you can't keep in control while crouching, then tighten them until things are a bit smoother. Adjust your feet with your front foot near the middle of the board and your back foot on the tail of the board.