How would a 135 pound 15 year old make herself look overall smaller thighs calves somatch arms?

Aerobic exercise, (tae-bo, DDR, jumping rope, there are lots of videos/DVD's, fast paced walking, ect.) Combined with weight lifting, and a sensible diet. Don't overdo the exercise when you start out to avoid injury. There are a lot of websites, just do a search for weight loss and you can find a lot of cool sites. Also look up weight loss of Web MD, it has a lot of safe info.