The kinsmen of the Capulet's and Montague's are fighting in the street after someone made a rude signal at them. (biting his thumb). This starts the story off by showing how the two households have a rivalry
This scene was when Romeo and Juliet met and fell in love with each other. This is when they knew that they wanted to be married and go against the rivalry.
This scene is when Romeo and Juliet got married against what their family's think. This scene sets up the whole story
Romeo Oh Romeo where for art thou Romeo!
Juliet had "killed" herself so she doesn't have to marry Paris. This is also when Romeo thought that Juliet was actually dead. He was on his way home to see her in her grave
This scene is when Romeo killed himself and Juliet really kills herself because Romeo has died. Also this is when the Friar had to explain why they were dead to the family's.