A simile is a comparison using the words like or as, while a metaphor is a comparison that does not use the words like or as. Act 2, in which the love between Romeo and Juliet quickly blooms and leads to a plan for marriage, is full of both similes and metaphors. A few are as follows.
In act 2, scene 1, Romeo, rhapsodizing over the heavenly beauty of Juliet, uses a simile to describe the glow in her cheeks as far brighter than starlight:
The brightness of her cheek would shame those stars /As daylight doth a lamp.
In the following passage, an ecstatic Romeo uses both simile and metaphor:
O, speak again, bright angel!
For thou art As glorious to this night, being o'er my head,
As is a wingèd messenger of heaven
Unto the white, upturnèd, wondering eyes
"Bright angel" is a metaphor that compares Juliet to a heavenly being. Romeo also uses a simile when he compares Juliet's glories to how an angel looks flying overhead. This casts Juliet as an immortal being and describes the spatial distance between the two: Romeo is looking up at her from below.
Juliet shares Romeo's abilities with words. She matches his worship of her with worship of him, using a metaphor to compare him to a deity, calling him
the god of my idolatry
Juliet also uses a simile to express her distress at the seeming insubstantiality of their promises (or contract) to each other. She compares it to lightning, a bright light that appears for an instant and is gone:
I have no joy of this contract tonight.
It is too rash, too unadvised, too sudden,
Too like the lightning, which doth cease to be
In act 2, scene 3, Friar Laurence is quite poetic as morning breaks:
The gray eyed morn smiles on the frowning night, Checkering the eastern clouds with streaks of light,
And fleckled darkness like a drunkard reels
From forth day's path
He uses personification—a form of metaphor that compares an inanimate object to a person—when he likens dawn to a gray-eyed person smiling. He also employs a metaphor when he compares darkness to a drunkard reeling away from view.
In act 2, scene 4, Romeo and Mercutio exchange word play that shows that Mercutio is far behind on the status of Romeo's love life. Mercutio, thinking that Romeo is still pining for Rosaline as he was the night before, uses a simile when he says that his friend seems tired
like a dried herring.