Close Grip Shoulders
This is a good exercise for both the shoulders and tricep muscles. Aim to get a good balance with your hands close together, centrally placed on the bar prior to performing any upward movement.
Smoothly
lift the weight vertically, taking the weight directly above your shoulder
with your arms straight, keeping your back straight. Lower down under control
and repeat for desired amount of reps.
You may decide to lift the weight slightly out to your front, in order to also work your chest muscles, however avoid this method if unconditioned to weight lifting, as it will place stress on the lower back.
Avoid arching the spine, or driving up with your legs at the start of your lift, focus on using your feet to fix your position ,pushing your back into the bench.