The sail sign is quite similar to ship and boat, as you can well imagine. To sign sail or sailing, cup your hands together in a boat shape, then move them forward a few inches. The sign should look like a boat smoothly sailing in gentle waters.
This is quite difficult to sign precisely for babies, so you will often see your little one simplify that by pushing their hands or fists together and moving them forward.
Teach your baby or toddler the sail sign when you are about to go sailing at the beach or lake, or when you see their cartoon or storybook characters sailing.
This is a useful flash card taught best in conjunction with beach- or seaside-related flash cards.