Perk-Up Your Pecs
This is our favorite breastersize by far. Why? Because you get to lie down! Lay on your back and pull your abs in. Then grab your weights, and curl your arms up toward your face — keeping your elbows bent. Lower the weights to an inch below your chest and then lift up. Your muscles will resist the weight, which is great for your pecs! Try 10–20 reps.