It's new to nick because all he's really ever done with his life is work in New York. That's what he wanted to do so that's pretty much all he did. He's never really experienced the party life.
It allows him to hear the war drum that forces him to kill. The acute silence makes the narrator so uncomfortable, he must make the old man scream. The narrator thinks that only killing the old man will make all of the surrounding noises disappear
Answer:
The the theme is to always be yourself i think. Great story btw! Happy Holidays!
Explanation:
True. Always question things you assume and things you THINK are right.