How do Romeo and Benvolio find out about the party at Capulet's? How does Benvolio convince Romeo to attend the party?

The Capulet servant cannot read so he asks Romeo if he can read the names on the invitation to the party. Benvolio says Rosaline will be at the party but he will also show Romeo other beautiful women. It will be a masquerade party so they can go in disguise.