When people think of the classic movie Breakfast at Tiffany's, they immediately think of Audrey Hepburn and her role as Holly Golightly. But there's a lot more to the iconic character than just her carefree, glamorous lifestyle and good looks.
Holly's attraction to Tiffany's is a sign of dissatisfaction with her life as it is. She socializes with the city's elite, but she herself is not wealthy. In fact, her one source of income is as a "call girl," accompanying men to expensive restaurants and night clubs who pay her for their services.
She feels like she has no place in this elitist world. She even refers to herself as a "girl about New York"—an image that is now associated with wealth and status.
Her cat is also a perfect reflection of her striving for independence. She believes that the cat is "owned" by her, but she has no legal right to name it.
Capote is able to use Holly's sexuality to break social rules that are commonplace in 1940's society. By dressing sexily and using her words to attract attention, Holly is able to resist these social rules and become the subject of conversation.
She is also able to express her opinions and feelings, which she feels she has no right to do. She is able to speak her mind because she dresses provocatively and is able to receive attention from her male peers. This is similar to how a contestant may dress scandalously and gain attention in order to win the title of Miss USA.