Set a bar just below collarbone height on a rack
Walk to the bar till your mid-foot is directly under the bar
Hold the bar with slightly wider than shoulder-width grip making sure the forearms and the elbows are vertical to the floor and the bar is resting on the heel of your palm
Take a deep breath in, keep your chin tucked in and push the barbell overhead, till the hands a fully extended
Slowly bring down the bar in a straight line till the bar touches the shoulder and repeat the movement
