One of the most famous comic confidants of Shakespeare's play, the Nurse is certainly also the most loquacious, and she delights in hearing herself talk. For instance, when Lady Capulet asks the Nurse where her daughter is, the Nurse launches into a three-line response:
Now, by my maidenhead, at twelve year old,
I bade her come. What, lamb! What, ladybird!
God forbid! Where's this girl? What, Juliet! (1.3.4-6)
When Juliet does respond, Lady Capulet asks the Nurse to leave, but then calls her back, an indication that there is some tension between the mother and daughter on the subject of marriage. And, by having the Nurse present, they both can argue in favor of Juliet's marrying Paris. When, for instance, Lady Capulet describes Paris as valiant, the Nurse adds that "he's a man of wax," meaning that he is as beautiful as a wax figure. Then, she underscores Lady Capulet's observation "Verona's summer hath not such a flower" by saying "Nay he's a flower; in faith a very flower" (1.3.79-80).
Lady Capulet then applies the book metaphor to Paris, but the images also allude to the marriage contract that would benefit the Capulets with "gold clasps," "locks," and Juliet's making herself "no less"—that is, improving her social position. The Nurse expands on the "no less" by employing a sexual pun on pregnancy with her earthy humor enjoyed by the groundlings: "No less! nay, bigger; women grow by men" (1.3.97).
While the Nurse is certainly a comic figure and a bit foolish, there is no question that she loves Juliet and that she is favorably impressed with Paris as a suitor.