1, go to the old and welcome the new. In the ceremony of sending wooden boats into the water, new ropes are usually used instead of old ropes, which means "going to the old and welcoming the new".
2. Shout slogans. At the moment when the boat is launched, you can shout slogans to show your celebration and blessing.
3. Set off firecrackers. After the ship is launched, firecrackers can be set off to show celebration and blessing.