I would not advice this as a 12 year old girl would not be fully developed yet.
walk and well that's it you at least lose calories
no that is insane and wrong
lose weight!
By being on a diet
use weight watcher
You're 14!!! stop trying to lose weight.
lose weight hahah phat bitsh
Diet and Exersize
get on the tredmil bumm
500 a day
A sensible exercise regime and diet
Exercising is a good way to lose weight. This will help but eating healthy will also contribute to faster weight loss.