He finds out about it though Mercutio and Benvolio who found out about it when Capulet sent Peter out to give the invitations and since he's illiterate he asks Mercutio and Benvolio to read who he has to give the invitations too.
In Shakespeare's play "Romeo and Juliet," Romeo finds out about the Capulet party through an invitation he receives from a servant of the Capulet household. The invitation accidentally falls into Romeo's hands, and he decides to attend the party to see Rosaline, the girl he is infatuated with at the beginning of the play.
at the Capulet house in the yard... i think.
Benvolio tells Romeo that Juliet is a Capulet at the party.
challenge him to a duel for attending the Capulet party without an invite.
Tybalt was upset at the party because Romeo arrived at the Capulet party. Tybalt believes that Romeo is mocking him and the Capulet name by arriving at the party. He attempts to fetch his rapier but his uncle, Lord Capulet stops Tybalt.
Capulet's manison.
Benvolio convinced Romeo to go to the Capulet's party.
He knew it when he went to the party. It was held by the Capulet’s and he sneaked in.
Capulet prevents Tybalt from fighting Romeo at the party.
The masquerade party in Romeo and Juliet is hosted by Lord Capulet, Juliet's father. It is held at the Capulet household.
He can't read it, being illiterate.
Romeo reads the guest list for the Capulet servant and agrees to go to the party to see Rosaline, but ends up meeting Juliet.
Capulet allows Romeo to stay at the party because Tybalt does not recognize him as a Montague. In addition, Capulet does not want to create a scene at the party by causing a confrontation with a guest, so he chooses to let Romeo stay and enjoy the festivities.