The captain of the boat is telling this man the rules about being on the boat. He is letting him and simply describing to him the precautions he must take, and exactly what he can and can't do. The man is listening, but not fully because he is so excited to get on the boat. After the ship boards, they will take a trip around in the boat, which is used for sightseeing, and both of these men will be happy. The captain is making money by doing his job, and the tourist gets to see around the city, like he desired.
