Nicolette is is shy and a little low on self-esteem, despite the way she looks. In fact she is oblivious to how other people regard her as attractive, not understanding the frequent wolf-whistles and drooling that spontaneously happen to people she talks to. She prefers to think of herself as "cute" over "sexy", even though she is definitely both. Even though she is quite smart in her own way, she's easily flustered and even more easily led astray by fast-talking individuals.
She maintains a happy-go-lucky, positive attitude even when things don't go well for her, always trying to see the best in everyone and in every situation.