Describe how the hair feels to you. If an infant focuses on the brace of another infant, talk about that, too. You're looking at Yolanda's brace. It is hard and cold. It helps make her leg stronger.
Babies learn about differences as infants.
They watch the adults around them to learn how to respect, treat, and care for others. If so, your child is growing emotionally. Fortunately, infant emotions come and go quite easily. Big outbursts are quickly forgotten. The important thing is to expect these ups and downs in your child's emotional life and bounce along with them.