Lower the pulleys to the bottom setting and stand between the attachment points.
Feet positioned in an athletic stance at shoulder-width.
Your knees are slightly bent and toes pointed straight ahead.
The core is braced and engaged with your shoulders pinned back and chest up.
Grab the cable handles and bring them to shoulder height with palms facing forward for the starting position.
Keep your wrist & forearms relatively vertical throughout the exercise.
Don't let your wrist roll back.
Press the pulleys up along a straight bar path.
At the top, your arms are fully extended and the weight is in a stable position overhead.
The opposite arm is holding the weight is strong, stable position at the bottom.
Imagine bringing your armpit forward as you press.
Don't shrug your shoulder at the top.
Lower weight back down fully to the starting position before alternating arms.
*Tips*
Do not let your low back excessively arch (lumbar). You want to maintain the tight, strong posture, that you created at the beginning, throughout the exercise.