Boat captains who have had a Person fall overboard say it is much harder to make a rescue then they had thought.
Here are a few general rules I would do to recover somebody in the water.
First stay calm.
Second, throw a lifesaving device alongside them, Not at them.
Keep the victim in sight, never take your eyes off them. If it is dark shine a light on them.
When you get close enough hand them a short line a paddle anything they can grab, and stop the motor. Then lead them around to the stern of the boat.
Help the Person aboard. If you must get in the water to help them into the boat you should put on a life jacket, and tie a line to yourself and the boat.
Make sure the person stays warm and dry as possible.
Do not give the victim hot drinks or alcohol if you think the may be suffering from hypothermia.
seek medical help at once.
Everybody Please be safe out there!