chpt 3 great gatsby

in this  chapter nick is invited to a party, the part i thought was interesting is when Gatsbys assistant guy is thee one who brings Nick his invite to the party as apposed to Gatsby doing it himself. Nick goes to this party and it kind of gives you a look into Gatsbys luxury life. People notice his Rols Royce and swimming pool. We also see that Gatsby has a habit of calling everyone "old sport".   Throughout the party i also noticed that Gatsby sits on his marble steps and watches the party as apposed to being apart of his own party. I thought this was interesting, this made me think that maybe Gatsby has some sort of fascination with impressing people and maybe caring about everyone being happy before he is.