How do you do a Cruyff turn?
Step 1: Dribble the ball, plant your weak foot, stop the ball with the inside of your strong foot, turning your body 90 degrees approximately
Step 2: Turn your body a further 90 degrees approximately, perform a ball roll with your strong foot and continue dribbling
Alternative Step 2: Turn your body a further 90 degrees approx, perform a reverse step-over, scoop the ball right and continue dribbling
What is a Cruyff turn in soccer?

Cristiano Ronaldo – Cruyff Turn Tutorial Video
Who invented the Cruyff turn?
Johan Cruyff invented the ‘Cruyff Turn’ at the 1974 World Cup in West Germany against Sweden.