Stand tall with a dumbbell in each hand at your sides, palms facing in. With a slight bend in your elbows, raise your arms out to the sides until they’re at shoulder height. Pause briefly, then slowly lower the dumbbells back to your sides and repeat.
Picture source: https://www.muscleandstrength.com/
Stand with feet shoulder-width apart, holding a barbell or dumbbells at shoulder level with palms facing forward. Press the weight overhead until your arms are almost fully extended, then slowly lower it back to shoulder level and repeat.
Picture source: https://www.muscleandstrength.com/