How to Get Perky Boobs The Pec Pushup Lay down on your back, pressing your spine down with your abs pulled in tightly. Grasp a five to 10 pound weight in each hand. Extend your arms straight up turning your palms to face inward, keeping your elbows tight against your the body. Inhale, and lower the weights down to one inch above your chest. Then exhale and press up. Repeat this 20 to 40 times.