What are you doing? It's called investigating. You should try...
Beckett: What are you doing? (Castle looking into Bobby's evidence bag)
Castle: It's called investigating. You should try it.
Beckett: I usually wait until there's a crime.
Castle: Cell phone, money clip.
Castle: He stuck a piece of gum to a paper before he put it in his pocket.
Beckett: One of his last acts was not littering.
Castle: Yes, but there's a word on this paper..."tory." Could be a mystery woman.
Beckett: Wow, Castle. Cracking this case wide open.