Rufio's eyes narrowed slightly, first in confusion at the notion that somehow Enigma had two dads, then in annoyance at his claim that both of them would kill her. "Makes sense why she joined up with me, then," he said. "But you don't seem so scary, so it's no wonder she ignores you."
Even with the sickle blade the man was a stick figure, and didn't have the presence Hook or most of the other pirates had. He just talked pretty, like the Captain, his physical self seemed about as relevant as Smee.