Mercutio!
Romeo
The Nurse promises Juliet that she will go find Romeo and talk to him for her
A good question which you may well be asking about any character in the play except Juliet, the Nurse, Juliet's mother and Romeo's mother. Be more specific and we can talk about what Peter or the Friar or Romeo or Tybalt does all day. This is an important question for anyone who wants to play the part of Peter or the Friar or Romeo or Tybalt.
The Nurse promises Juliet that she will go find Romeo and talk to him for her
Most famously, Romeo and Juliet discuss their love in Juliet's backyard. Juliet is in her window and Romeo is in the bushes down below. It's in Act 2 Scene 2 of the play.
He's making arrangements for his wedding to Juliet.
No she does not. Juliet's parents don't even know that she married Romeo
Romeo is moody because when he is upset about Rosaline, he doesn't wish to talk to anyone but immediately upon meeting Juliet, Romeo begins to speak more with Benvolio and Mercutio. hope that helps.
The nurse wants to talk to Romeo to deliver a message from Juliet in Shakespeare's play Romeo and Juliet. Romeo asks the nurse to tell Juliet to meet him at Friar Laurence's cell that afternoon so they can get married.
She's looking for Romeo and because she wants to talk to Romeo about Juliet
So that Romeo can talk to the Nurse and tell where and when Romeo and Juliet will be married.
Since you catigorized this in Romeo and Juliet I'm going to assume you mean a character in the play. A character in Romeo and Juliet that loves to hear himself talk is Mercutio because he often goes into meaningless and long- winded speeches such as the Queen Mab Speech and when he describes Benvolio as being hot tempered. If you didn't mean to catigorize this in Romeo and Juliet and don't know what the heck I'm talking about in the second paragraph Google "sparknotes nfs" (it is the first link that shows up) it' every single one of Shakespheares plays plus a modern day translation. That is...if you're interested.