Why does Gatsby trust Nick in The Great Gatsby?

Gatsby views Nick as a genuine friend in a society full of selfish, shallow individuals and demonstrates trust in him for several reasons. Initially, Gatsby lies to Nick about his background and occupation. Gatsby even dismisses Nick's questions regarding his business and conceals his true identity for the majority of the story until he discovers that Nick is inherently different from the East and West Eggers.
At the beginning of the novel, Nick mentions that he was always "inclined to reserve all judgments" and is a relatively tolerant, understanding individual. The fact that Nick is an outsider to the East Coast also appeals to Jay Gatsby. Similar to many individuals who have confided in Nick, Gatsby does the same after he becomes familiar with him. Gatsby does not feel that Nick is superficial like the other members of his community and feels comfortable trusting him due to his casual, tolerant demeanor.
Gatsby also views Nick as a kindred spirit—in hailing from the Midwest and having fought in World War I. Gatsby and Nick share these commonalities, and Gatsby gradually begins to trust Nick after he proves that he is an honorable, trustworthy individual. For example, Nick sets up a meeting between Gatsby and Daisy and also refrains from speaking about their affair. It is only after Myrtle's death that Gatsby tells Nick the truth about his past, which reveals that he views Nick as a genuine friend.