What is the theme in Where Are You Going, Where Have You Been? by Joyce Carol Oates?

One of the larger themes in the book is appearances and reality. Connie prides herself as a skilled flirt who has never been in a situation she could not handle. She feels confident when Arnold Friend arrives at her door while she is alone in the house: "Who the hell do you think you are?" she asks. Mistaking him for the type of boy she frequently attracts, she thinks she recognizes him from the sound of his car's horn, his clothing and physical appearance, and the line of banter with which he attempts to lure her into his car. Both Arnold and Connie contribute to these erroneous first impressions. Arnold assumes a role as a teenage Romeo although he is much older, and Connie accepts his facade because of her fondness for the "trashy daydreams" her mother accuses her of subscribing to.