When does Percy find strange about the bull-mans appearance?

When Percy first meets the bull-man, he notices several strange things about its appearance. He describes it as having the body of a man but the head of a bull, with horns and a nose ring. He also notices that the bull-man is wearing a loincloth made of animal skin, which he finds unusual for a creature that is half-human. Additionally, he notices that the bull-man's eyes are glowing red, which he finds unsettling and unnatural.