Performing the: A Step-by-Step Tutorial Chest Bench Press - Shoulders
Grasp the barbell with your hands slightly wider than shoulder-width apart, palms facing your feet, and lift the bar from the rack (or have a spotter help you).
Slowly lower the bar down to your chest, keeping your elbows at a 90-degree angle and your wrists directly above your elbows.
Once the bar touches your chest, push the bar back up until your arms are fully extended, making sure not to lock your elbows or lift your back off the bench.
Repeat the lowering and lifting process for your desired number of repetitions, then safely rack the barbell or have your spotter help you.