How am i supposed to know?

THe first character that is introduced in the story is Nick and he is the narrator and he is kind of a weird character, he is a stock broker who just moved to New York in the escape of an engagement, he told us that he lives his whole life not judging anyone because e was told by his father "Whenever you feel like criticizing any one...just remember that all the people in this world haven't had the advantages that you've had." (Chapter 1, pg. 1) and he seems to live by that. Daisy was introduced next, she is Nicks cousin in a really loveless marriage and is only in it for the money that her husband has, she also is caught in a world of herself because she wants her young daughter to grow up stupid so she can be rich "I hope she'll be a fool - that's the best thing a girl can be in this world, a beautiful little fool....You see, I think everything's terrible anyhow....And I know. I've been everywhere and seen everything and done everything." (Chapter 1, pgs. 17-18). Tom is Daisy's husband whom is cheating on her, he is a total meat head lost in the world of the past trying to relive his star football days and being young "[Tom] would drift on forever seeking, a little wistfully, for the dramatic turbulence of some irrecoverable football game." (ch.1 pg.6). Jordan is Daisy's friend who is just like Daisy, she is from somewhere else but will be staying at Tom and Daisy's and they are trying to hook Nick up with her but she is very nosy "Tom's got some Women in New York...you think she would have the decency not to phone him at dinnertime" (ch1. pg 13). The novel seems like it will be really good but the writing style gets on my nerves but i will get over it. Overall this should be a great unit.