ALL TALK, no actions

So since ive been reading this book, I feel like he is all talk no action. He says a lot of things but NEVER follows through. For example, he acts all tough and stuff, but he will not fight a guy for anything or confront him. Like about the gloves, he says he would rather slit his throat or something than punch him. He also gets into a fight and lets Strandlater win when he thinks he is so tough. Or how he talks about girls all the time and always talks about having sex, but he is still a virgin. And when the prostitute comes in he just talks. I feel like he can never go through with anything because he is too scared of the results.