Nick sees himself as a middle class guy, he tends to see things differently. He is always very kind, and never selfish. He is quite observant: outsider looking in on lying rich people trying to belong.
Nick meets Gatsby by talking to him and asks him who Gatsby is and where is he.
The man who invites Nick in a hydroplane in The Great Gatsby is Gatsby himself. He shows off his wealth and extravagance by giving Nick a tour of his mansion and then offering to take him on a ride in his hydroplane.
The crest on Gatsby's invitation to Nick is a silver card with a blue new world on it, symbolizing Gatsby's connection to his past and his desire to reinvent himself. It represents Gatsby's attempt to create a new identity and distance himself from his humble beginnings.
Nick compares Gatsby to a son of God, believing that Gatsby had come out of his Platonic conception of himself, and seemed to walk through the garage. This comparison highlights Nick's admiration for Gatsby's resilience and determination in the face of challenges.
because Nick thinks Gatsby wants to be alone by himself
Nick spends most of his time with Gatsby himself at Gatsby's parties and events. Although he interacts with other guests and acquaintances, Gatsby is the primary person he interacts with and observes closely.
They are at one of Gatsby's parties in Chapter 3. Nick mistakes Gatsby as one of the attendees of the party, until Nick asks, where the host is. Gatsby announces himself as the host and startles nick. The specifics of their location would be at a small table. Nick was with Jordan and her friends at a small table when "a man about [Nicks'] age" asks Nick about his time in the military. The man happens to be Gatsby.
Nick has a complex relationship with Gatsby. Initially, Nick admires Gatsby's ambition and his ability to reinvent himself. However, as the novel progresses, Nick becomes disillusioned with Gatsby's pursuit of wealth and social status. Overall, Nick sees Gatsby as a tragic figure, caught up in the pursuit of an unattainable dream.
Gatsby recognizes Nick from the war when they were both served in the same division. Nick mentioned to Gatsby that he was from the Midwest, which caught Gatsby's attention.
Nick learns that Gatsby isn't what people have said him to be. Gatsby served in the war and studied at Oxford. At first, Nick is skepitcal about what he says because the way Gatsby is speaking seems akward and suspicious to him. But Gatsby senses this tension and pulls out his medal from the war and a picture of himself on the polo team of Oxford.
Gatsby tells Nick about his life because he trusts him and sees him as a confidant. He believes sharing his past with Nick will help him win Daisy's love. Gatsby also wants to present himself in a certain light to Nick, as someone who has achieved great success and is deserving of admiration.
Nick Carraway attended Gatsby's party because he was invited by Gatsby himself, who hoped to reconnect with Daisy through Nick's presence. Additionally, Nick's decision to go to the party was influenced by his curiosity and desire to observe the extravagant lifestyles of the wealthy elite in the 1920s.