Juliet has a formal relationship with her mother, she is a very obedient, dutiful daughter. This is evident when she says "Madam, I am here. What is your will?"
She like Romeo has a tendency to change her mind. At the start she claims that marriage is "an honour that I dream not of" however when she meets Romeo she falls deeply in love with him in act 1 scene 5 when she says "My only love spring from my only hate! Too early seen unknown and known too late"
Her great admiration towatds Romeo is clearly outlined when she claims that she is willing to give up her family name for Romeo, "Be but sworn my love and I'll no longer be a Capulet.
We can say that she is an independent character. When the nurse says all the good things about Paris in act 1 scene 3 she says "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". She won't just give in to Paris but rather make an independent choice when it comes to who she wants to marry.
In the balcony Romeo used hyperbolic language to praise Juliet, "The brightness of her cheek would shame those stars". Whilst Juliet is appears grounded and down to earth as she claims that their view of love are "too easy, too unadvised, too sudden".
The secrecy of their realationship shows readers that she is secretive and rebellious in hiding her marriage from her family.
(Sorry, I'm only on act 2 so I guess that's really all there is to say!)