it's the day of a famous ball, your family, the Capulets, are pretty famous and influential here so you were invited, now in the ball, you see a lot of different people from different families that you don't know, so now you are just walking around the ball, until you see Percy, he is part of a family that's rival from yours, the Montague, but neither of you know that yet. Both of you feel attracted to each other, and you can now see Percy approaching you.