Teach your baby the sign for the word boat in baby sign language with the following description and video.
Form both hands into curved hands. Hold the hands palm up in front of the body and touch the pinkies together to form a boat shape. Wiggle the hands back and forth while moving the hands away from the body.
Beyer, Monica. 2006. Baby talk: A guide to using basic sign language to communicate with your baby. New York: Jeremy P. Tarcher/Penguin.