text: how can i get skinnier without getting in a diet? i am 10 years old and i want to be skinnier. i don't want to go on any diets though. do you know any sites? can you give me some advice? exercise.  but you don't need to think of it as "work". you can just go for a walk every day, even if it's just around the block.  you can do sit-ups or leg lifts or bicep curls while you watch tv.  good luck!