What are Ponyboy’s physical and personality traits?

Ponyboy is a dreamer. It is one of the reasons why he and Cherry get along so well together. He's also an open-minded, critical thinker. This is another reason why he and Cherry get along. She tells Ponyboy that the Greasers and Socs are similar, and she tells him that the Socs have their own problems as well. Ponyboy doesn't dismiss the idea. Instead, he contemplates it and ends up agreeing with her.
Ponyboy is also one of the most respectful of the Greasers. This is why he doesn't talk dirty to Cherry and her friend, and it's why he feels ashamed when another Greaser does talk to them in a disrespectful manner. The other Greasers all recognize these qualities about Ponyboy, and it is why they try to keep him a bit distanced from their violent world. Johnny especially notices these characteristics, and that's why he tells Ponyboy to "stay gold."
As for looks, the opening paragraphs of the book provide readers with a fair amount of detail. He tells his readers that he has light brown, "almost red" hair and greenish-gray eyes. Like other Greasers, Ponyboy keeps his hair long, and he laments having to dye it and cut it. Ponyboy is a sibling of both Darry and Sodapop, and we know that he is a fairly good-looking kid; however, we also know that he isn't as attractive as either of his brothers. Finally, readers are told that he is one of the smaller members of the gang, but this is likely because of his age.