because Civil means you are respectful and up right, so it doesn't fit. wily means you get you way in things, but in a clever and smart way, an none of these examples are smart. and blasphemous means to say bad words and none of these are bad words. so that leaves you with monstrous
He was using his body language and gesticulation to make a digresion and push the speach in a new direction for a brief amount of time. Digresion is commonly used in public speaking when one is giving and example, introducing new topic, bringin a guest in, and so on.
