Every new one gifted. We count the total number of each item floating around in the game at the end of the contest, the one with the higher total wins.
Awesome! Think there is a mistake tho when we go to gift the boutonniere it days girls to compete with the girls I believe it should say compete with the guys.
It determines which Premium Avatar we'll preview before the end of Prom. Whichever gender wins this showdown, that's the gender's avatar we'll show off.