When you already got new shining board, push the board out into deep water until the fin is clear of the bottom. You may want to get a sense of the wind direction and maneuver the board so that the sail is downwind of the board.
When you on the water, swim or walk to the upwind side and clamber onto the board. Keep the balance of your knees and grab a hold of the uphaul, without pulling up the sail yet.
Move your feet up at a slow pace and then rock back and forth on your feet to get a feel for it. Bend your knees and pull the sail up slightly from the water and then hand over hand like hauling in a rope.
Try to keep your back and your body upright. You are bending over too much if you feel your lower back starting to ache. Take hold of the mast immediately with both hands and let it swing. You need to control the balance of your position.
Straight up tilt the mast to your left with the mast. Your body should transfer this imbalance to the windsurfer board and make the board turn or spin clockwise. If you tilt the mast to the right, then the board will turn counterclockwise.
The board will turn faster if you get stronger wind and further of tilt. If you tilt the mast to the stern the board will head up in to the wind. Pay attention which side the bow of the board is in relation to you. Place your hand on the boom so the mast is leading the sail towards the bow.