The answer is 'his hair turns grayer' - that is the physical change which took place in the spirit of Christmas present from when he first appears in the story to when he leaves.
153 degrees or microwave temp
“They were conscious that they were not as other animals.”
“If they worked hard, at least they worked for themselves.”
“All animals were equal.”
Juror #10 reveals his prejudice almost immediately when he says, "Well, it's the element. They let the kids run wild. Maybe it serves ‘em right." By using the pronouns "they" and "them" he makes a general statement about the people who are considered poor.
Juror #3's prejudice is first revealed when he says, "It's the kids. The way they are—you know? They don't <span>listen." He goes on to talk about his son and how he "made a man out of [him]." His prejudice is directed towards teenagers and their supposed lack of respect for their fathers.</span>
