1. If I were Holden and had just gotten kicked out of school, I would probably go to a friends house or travel to a place that I had been wanting to go to. I don't think that I would want to go home, agreeing with the thoughts of Holden on this. I would go to a friend's house because it would be like starting vacation early instead of getting kicked out of school. Or I would go to a place I had been wanting to go to for a while, like NYC, because it would get my mind off why I wasn't in school, and all that other stuff.
2. I think that what the end of chapter 12 says is true. Especially when you're reading a book, and someone else has already read it and they tell you exactly what happens. Same with movies. When you're having fun and someone is just all bummed out about it, that also can ruin it for you. Or when they're not enjoying themselves but you are, and they think that it's all about them. People have definitely ruined things for me before, while I'm reading books or about to watch a movie. And when others are just down all the time, it has ruined it for me also.
3. Right now, Jane's character has just been introduced a little. There hasn't been any present interactions between Jane and Holden yet, so I can't really say how they interact together. But Jane is one of those people who is always fun to be around, likes just hanging out, and also doing random things that are fun. I think the fact that Holden remembers how Jane always kept her kings in the back row was a hint of a possible connection between the two. I have the feeling that Holden cares about Jane, even if he isn't willing to admit it. His thoughts always drift back to her, and he doesn't really mention any other girls, other than ones he "went around with", which leads me to believe that she was someone special.