* His mystery and aura: Nick is immediately intrigued by Gatsby's elusive nature and the rumors surrounding him. He is drawn to the "gorgeous" and "elaborate" parties Gatsby throws and the sense of "unfathomable" wealth and mystery surrounding him.
* His ability to throw extravagant parties: Nick is impressed by the scale and lavishness of Gatsby's parties, noting their "unbelievable" opulence and the sheer number of guests.
* His unwavering hope and optimism: While Nick doesn't fully understand Gatsby's motives, he seems to admire the "romantic readiness" and "extraordinary gift for hope" that Gatsby possesses.
However, it's important to note that these initial admirations are tinged with a sense of skepticism and caution. Nick is aware of the superficiality of Gatsby's world and the possibility that Gatsby himself is not all he seems.