How do you tone and firm your legs so you can wear shorts and look good?

Many ways. There are so many ways to do this. Choose what you like from weights via machines, squats, lunges, leg presses, jumping jacks, zumba classes, yoga, swimming., walking running. If you do not know were to start and you are healthy for exercise (check with your doctor first before starting an exercise program), working with a personal trainer is a great way to start.