why does Gatsby deliver so many goods and services to nick's house?

http://www.gradesaver.com/the-great-gatsby/q-and-a/why-does-gatsby-deliver-so-many-goods-and-services-to-nicks-house-what-is-the-meeting-between-gatsby-and-daisy-like-initially-66611/

Gatsby wants Nick to help him in setting up an event so that Daisy would come to it. It is supposed to be a tea. For the said purpose, he delivers services and goods to Nick’s house in fact to flatter him.