Hey, greaser. We're gonna do you a favor, greaser. We're gonna cut all that long greasy hair off.
Need a haircut greaser?
Page 5, Chapter 1, when Ponyboy is being chased by some socs, and they are threatening to cut his hair.
On page 19, when Dally puts his feet up on Dally's chair, and says raunchy things, that Cherry, nor the boys, enjoy.
On pages 45, and 46, Ponyboy runs away because Darry hit him. He goes to Johnny and they run away, without any hesitation. This scene is where Johnny is telling Ponyboy basically how grateful he should be that he has family that loves him.