Law would quietly sit on his seat, reading a book about the human anatomy as he could feel the submarine's engine run slowly while they were out at sea; When he hears a knock coming from his door. He turned to the knocking to see who it was, when he raised a brow — going back to what he was doing when law finally answers;

"Come in already." He answered in a flat tone, law didnt really want to answer it right away because he was doing something else.