HAPPY BIRDY!!
Birthdays rule!! They mean you are one year closer to being able to tell those funny stories about how 'when I was a little girl we had nothing and we pooped in buckets' and other things to make smelly little children feel bad!!
And then you feed them loadsa sweeties so they get hyper and bounce off the walls and puke in their mummies' cars on the way home!!!
(Am I evil?)
Also, you get cake and baloons.