Shannon is a shy, quiet college student. however, when she sits in the student section at university basketball games, she cheers and yells whenever her team scores. shannon's behavior at the game illustrates the phenomenon of:

Shannon’s behavior at the game that differs from her character as a student when out of the basketball game best illustrates deindividualism. A person illustrating this phenomenon is likely to act or behave of in a way of having to lose his or herself when he or she is around with group of people such as Shannon when she is around the crowd during the game.

you should try adrenaline. it kicks in in situations like this.