One of the most important aspects of Romeo and Juliet is how Juliet develops and matures as a character over the course of a very short period of time. At the beginning of the play she could be described as obedient and docile, as illustrated by her response to her parents when they ask her to meet Paris:
I'll look to like, if looking liking move;
But no more deep will I endart mine eye
Than your consent gives strength to make it fly.
After meeting Romeo, however, the audience sees that Juliet is as passionate and fiery as he is. She is consumed by her love for him almost immediately. At the same time, however, she is also pragmatic and eager to ensure that Romeo feels the same way as she does before she is willing to proceed in what she knows will be a dangerous affair:
O gentle Romeo,
If thou dost love, pronounce it faithfully.
Or if thou thinkest I am too quickly won,
I'll frown, and be perverse, and say thee nay,
So thou wilt woo; but else, not for the world.
After their wedding, Juliet becomes defiant of her parents, swearing that she will not marry Paris, no matter what her father says. This is a major change from her portrayal earlier in the play, when she was a deferential young girl. Finally, at the end of the play, we see how courageous Juliet is as she willingly enters into the Friar's scheme, despite the horrific possibility that she might wake up in the Capulet family crypt. She is willing to enter a death-like state, and even to risk death itself to be reunited with her husband.