You can find one example of hyperbole in Scene 2. Romeo and Juliet are professing their love for each other and Juliet is afraid of what will happen if Romeo is found in her garden. She tells Romeo that he will be killed if he is found. However, Romeo tells her: "Alack, there lies more peril in thine eye/Than twenty of their swords!"What he means is that he is more afraid that she'll reject him than he is of her family finding him there.
There are many examples of dramatic irony, which is when the reader or audience knows something that one or more characters do not yet know. One very poignant example of dramatic irony occurs in Scene 5 when Romeo and Juliet secretly get married. Their parents and other family membes do not know this has occurred.
One example of personification can be found at the beginning of Scene 3 spoken by Friar Laurence as he is tending to his herbs. He says to himself: "The gray-eyed morn smiles on the frowning night,/Check'ring the eastern clouds with streaks of light;" The morning is being personified because it is smiling and the night is being personified because it is frowning, both actions people do.