I don't understand Silva at all. He looks past Chael and acts like he doesn't care, then stares intently at him when it's time to face the cameras. He did the same thing the last time they fought.
Either act like you don't care or act like you're taking him seriously. You can't do both.
Its called mind games. Chael knows he has to face the cameras, but in the back of the mind he also knows silva's death stare is towards him.