How did Shakespeare use language and specific word choices to help define and shape the tone characters and shape of act 1 in romeo and Juliet?

When you think about it, this is kind of a silly question. How does language create and effect on an audience at any time? Well, what someone speaks makes us understand something about their feelings, their intents, their thoughts, and so on. We have a window into their world.

Of course the people in a play are not real people, but we enjoy plays because we forget about that for a moment and try to think of them as if they were real. A play which features people in the throes of violent emotions and facing unusually difficult situations is more interesting. Powerful language makes it clearer to the audience what is going on with them at the time.

Act 3 Scene 1 is full of these visceral and powerful lines: "a plague on both your houses", "either you or I or both must go with him", "O, I am Fortune's Fool!"