This is a scene right after the meeting. They dressed up as natives. They had decided to go and throw tea off of the ship, thinking maybe if they did so that the people would get rid of the taxation. They believed there should never be taxation without representation.
IN this scene they are actually throwing the tea. They're are boxes in hands and in the water. They obviously were not putting up with the tea tax.They throw almost all of the tea off of the ship. Colonists would come up to the ship and try to steal tea bags but people stopped them.
In this they are fixing boxes. They clean up the boat. They just wanted to prove a point not break the whole ship. They knew that they would get in even more trouble if they didn't hide the evidence.