The formal (also called a Prom
in america) is an event generally held in yr 10 and yr 12. The girls spend many months trying to find the perfect outfit, and once they have, make sure the guy shave the perfect outfit to match. The boys usually get corsages for the girl either to wear on her wrist or on her dress.There is a stereotype in public schools that a lot of people have sex at the formal, but this isnt true in private schools.
There are pre's and an afterparty, and there is a lot of variety with who is hosting it and what will be happening.