The 1920's was a time of change for women. They were coming out of their shells and becoming more independent. "They also gave women new role models: the strong, independent women who was capable of taking care of herself, asserting her sexuality, and making a living at the same time." (http://www.1920s-fashion-and-music.com/famous-people-in-the--1920s.html) The women that attended Gatsby's parties were flirtatious, independent, and care-free. These women would flirt with men at the parties and dance with different people. These ladies weren't afraid to have some fun.
The women of Gatsby were very independent. They dressed up in extravagant outfits and made themselves feel beautiful. They were confident and outgoing. They believed in themselves and the new, daring personality that came along with that. These women spent their time dancing, gossiping, and having the time of their lives.
These women were also rebellious and daring. They drank in public, smoked, and were of low moral character. "They rode bicycles and drove cars, drank(often in public), and smoked cigarettes through long holders" (http://noticeboard.arikiart.com/2008/08/flappers-of-1920s.html) This new time of rebellion and fun was exciting to them. It was something different and it felt good to them to do what they pleased and not worry. Gatsby's parties were where they acted on their rebellious ways.