What happens in Act 2 Scene 1 of Romeo and Juliet?

In Act 2, Scene 1 of Romeo and Juliet, Romeo and his friends Benvolio and Mercutio leave the Capulet’s party. Romeo impulsively decides to jump over the manor wall, and Benvolio and Mercutio try to find him. Benvolio, cautious and serious, is concerned that Romeo will get himself into trouble.