"I had her glued to her seat. You take somebody'smother, all they want to hear about is how much of a hot-shot their son is."(Holden,56). This quote is from the passage where Holden is pretending to be someone else while talking to Mrs.Morrow, one of his classmate's mothers. He lies about how great her son is because he wishes his parents would appreciate him.
"He probably was scared he'd fractured my skull or something when I hit the floor. It's too bad I didn't."(Holden,45) Holden has lots of thoughts but I believe that this one characterizes who he is pretty well. In this scene he was salty towards Stradlater but he also wanted Stradlater to take responsibility for something for once and his life.
Holden brings up the ducks and where they go as often as he can. It seems that every time he does this he already has an idea in his mind of what he wants to hear but he never gets a full answer. In chapter twelve, Holden has an antagonizing effect on his cab driver when he mentions the "ducks". This driver has responded with, "How the hell should I know a stupid thing like that?"(Horwitz,82)
The scene where Holden writes Stradlater's essay is indirect characterization of Holden because it shows that he really cares about the small personal things. But it is also direct characterization of Stradlater, showing that he thinks Holden is weak because he wrote about such a soft topic.
"...I went to look at my stupid face in the mirror."(Holden,45). This quote comes from after Holden's fight with Stradlater over Jane. I think that the reason J.D. Salinger finally had Holden comment that he has a "stupid face" to show how even he criticizes himself like others.