Tell them that you don't have time and maybe later.
Tell them to shut up then run away.
Forget whatever you have to do and talk to them.
Tell them you will ask your parents and see if your free that day.
Tell them who cares about your birthday? I got better things to do!
You can't attend, but you decide to sneak out and go anyway.
Just hang out with your friends and decide that you need a little time without a boy/girlfriend anyway.
Cry and scream and tell them you hate them for dumping you.
Pretend they never dumped you and act like your still together.
Give them a friendship card and a goodbye gift and hope you can visit them sometime.
Say you hate them and go hang out with your other friends.
Sneak out of your house and buy a ticket for the plane your friend is going on and move with them.
Ask your parents if you can go to their house and see if you can play the Wii together.
Break in to their house and steal their Wii.
Sneak out and go buy a Wii.
Tell them you didn't really like cats that much but you do play with their kitten.
Go in to their house and try to kill it.
Tell your friend to switch their kitten with a different pet.