Tuck Them!

Tuck Your Shoulder Blades Down and Back

This tip is great for pullups, but it's more than that. By sliding your shoulder blades down and back before an exercise -- like you're tucking them into your back pockets -- can improve your results and protect from injury. It helps activate your lats for pulling exercises, work your pecs more completely in pushing exercises, keeps your chest up during a squat, and can reduce painful impingement on your rotator cuff during biceps curls.