Who knew that one girl dressed as a dude could cause so much confusion?

Most of the issues in Twelfth Night stem from cross-dressing and mistaken identities, which go hand in hand. It might be tough for some students to keep track of the love entanglements caused by Viola's decision to dress as a man and call herself Cesario. She loves Orsino, even though he thinks she's his boy-servant; Olivia loves her, though she thinks she's a him; and she's caught in the middle of Orsino loving Olivia.