Fitness expert Jason Ferruggia offers this quick tip for building up your calf muscles:

For bigger calves (a problem spot for most hard gainers) don't train the muscles directly. Moves like standing and seated calf raises will pump up your calves. That may look cool when you're playing sports, but it causes your calves to burn, so they'll fatigue faster -- not fun when you're in the middle of a game. It could also increase your risk for ankle problems and shin splints. The best strategy for better-looking -- and better-performing -- legs is to train your calves like an athlete by jumping rope and sprinting.