What is going on in this part of the novel?
NICK WAS INVITED TO A PARTY WITHOUT ANY INFORMATION ABOUT THE HOST. COINCIDENTALLY, WHEN NICK CASUALLY CHATTED WITH A MAN AT THE PARTY, HE WAS TOLD BY GATSBY THAT HE WAS THAT"GATSBY WHO HELD THE PARTY",LEAVING NICK IN EXCLAMATION. THEN CAME THE ABOVE DESCRIPTION OF GATSBY'S SMILE. IT HAPPENED TO BE A RECOLLECTION OF GATSBY BY NICK.