She is the very first character that viewers see on Glee. She is a member of the Cheerios, and dances to the routine of You Can Do It/You Keep Me Hangin' On at the very beginning of Pilot. She was also seen in the performance of You Keep Me Hangin' On.
From what we see of her, she appears to be a very skilled dancer. She has brown eyes and black hair, and appears smiling in the very first scene of the Pilot episode, perhaps indicating that she is a happy, cheerful and a well-adjusted character.