What are some physical features of Charles Baker "Dill" Harris in To Kill a Mockingbird?

In chapter 1 we get a very detailed description of who Dill is, and we get a vivid description of his imagination and his personality.   

"Dill wore blue linen shorts that buttoned to his shirt, his hair was snow white and stuck to his head like duckfluff; he was a year [Scout's] junior but [she] towered over him."

He had blue eyes that danced when he told his stories, he laughed a lot, and he constantly pulled at a cowlick that was in the center of his forehead.  When asked personal questions, such as where his father was, he instantly blushed.