The novel's narrator, Nick is a young man from Minnesota who, after being educated at Yale and fighting in World War I, goes to New York City to learn the bond business. Honest, tolerant, and inclined to reserve judgment, Nick often serves as a confidant for those with troubling secrets.
Nick not only tells the readers what has happened but continually suggests how they should feel about what is happening. He does this mainly by expressing how he feels himself. This seems to be Fitzgerald's main reason for using Nick as a minor-character narrator.
The majority position is the traditional one: Nick is considered quite reliable, basically honest, and ultimately changed by his contact with Gatsby. ... The critical controversy merits a brief return to the text as our final understanding of Gatsby is almost entirely dependent upon the reliability of Carraway's narration.
She tells Nick that when her daughter was born, she told the nurse: “I'm glad it's a girl. And I hope she'll be a fool—that's the best thing a girl can be in this world, a beautiful little fool.” ● Pages 21-23: Nick and Daisy return inside oh, and the group says their goodnights. that is how he recognized her.
When Nick says “There are only the pursued, the pursuing, the busy and the tired.” he is saying that everyone falls into one of those categories. The pursued are men like Gatsby who everyone is after, people who there are always interest. Jordan would also fall into this category.
When you say, "to swallow something hook, line, and sinker" it means to completely fall for whatever was said or to completely believe what was told or presented. Usually, what was presented is a lie, and when the person is gullible enough to believe it, the phrase applies.
Doodle is just happy to be with his brother, and that his brother is taking interest in him. Even though his brother is actually ashamed to be seen with Doodle.