Instructions
Plan your departure, and make sure everyone knows his or her role. In a typical departure situation, the captain is setting in the stern controlling the motor and rudder, one crewmember is controlling the ropes that secure the boat to the dock, and any other passengers are seated in a safe place.
Start the motor, and release the bow of the boat. The most capable crew member should untie the ropes and step onto the boat, while holding one rope that is still looped around a dock cleat. If there is another capable crew member, they should be holding an oar or other sturdy pole to push against the dock ̵1; especially if there is a wind pushing the boat into the dock.
Release the last rope. If you expect the ropes to be there when you get back, they should be left on the dock. Otherwise, bring the ropes onboard and stow them once you are underway. The person with the oar should now ensure the bow is pointed away from the dock, taking care that if the boat is blown into the dock, the collision is slowed down as much as possible.
Stow any ropes, poles, fenders or other gear as soon as you are free of the dock. Keep a constant lookout until the boat is far from the docks and other boats, and you are ready to cut the engine, turn into the wind, and raise the sail.