* Hold the pull-up bar with your hands shoulder-width apart and palms facing away from you. * Start with your arms straight and your feet off the floor. * Pull yourself up until your chin passes the bar. * Slowly lower yourself until your arms are straight again. * Keep your elbows pointed no more than 45 degrees away from your body. * Keep your shoulder blades back throughout the pull. * Keep your neck neutral. Don’t look up at the bar. * Cross your feet. If the bar is low, bend your legs at the knees so that your feet stay off the ground. * Exhale on the way up and inhale on the way down. * If you aren’t strong enough to do a full pull-up, you can try them from a box so that your arms are starting already bent. References: https://stronglifts.com/pullups/