Thesis:
(new one)
Juliet, a dramatic character in Romeo and Juliet, changes a lot through her rebellion against her destiny encouraged by Romeo's love; in order to perform Juliet, I focused on intonation, body language and facial expression to comprehensively portray her as emotional and variable as a person in the real world.

(old one)

For performing Romeo and Juliet, intonation, body language and facial expression are important ways to comprehensively portray a character, Juliet, as emotional and variable as a person in the real world, when she rebells her destiny and makes huge changes.