Raise your arms overhead with elbows extended and palms facing forward. (pumpsandiron.com)
Breathe in and with slightly bent elbows extend the arms to the side, i.e. straight out at both sides, creating a wide arc until you feel a decent stretch on your chest. (fitnessandpower.com)
As the bar clears the knees, explosively extend the hips, knees and ankles and immediately follow by rapidly shrugging the shoulders upward followed by the elbows (coreperformance.com)