The parties compare to the liquor and because wherever there is a high class party there is usually liquor. This all represents who Gatsby really is, his power, wealth, swagger, gangster. For example, pg: 41 nick states: “there was music coming from the neighbor’s house through summer nights, mean and women came In and out like moths”.
Gatsby likes to wear expensive shoes and show off his cool cars and his swagger which shows his class and how he intimidates others with his fortune. Manly around daisy