This your standard quad stretch, however, focusing on correct technique will help you get a much better stretch. While standing, bring your foot up behind you and with the arm on the same side, grab from the outer side of your foot and pull up gently. Focus on keeping your knees together, your legs in line with one another, and pull your stomach in to maintain straight posture. Focusing on these steps will help you get a better stretch across the top of your leg.