Answer and Explanation:
One of the most immortal events in Act 1 of "Romeo and Juliet" takes place right in the first scene, where Capulet servants make mischievous jokes about women and the Montague family and wait for the servants of the other family to show up so they can be mocked. This reinforces the enmity between the families, even reaching the servants of the two who also saw themselves as enemies.
Another important event can be seen in the moment when Romeo is depressed for not having the love of Rosaline. Romeu feels completely downcast, while his friend Benvolio encourages him to forget Rosaline and go and enjoy the party that the Capulets will be promoting. This shows the true friendship between the two boys, in addition to being an omen for the first meeting between Romeo and Juliet.
A third important event is the movement of Juliet's family to find a good marriage for her, that promotes a good social position and that raises the Capulets' name. This shows how Julieta did not have the freedom to fall in love and could not choose her own husband.