One's Turn

(One's) Turn is signed like the first part of take turns: your dominant hand forms the letter 'L' with the thumb up and index finger pointed at a right angle, while the rest of the fingers remain curled. Then do the motion of pointing the thumb close to your chest, and rotating your thumb toward the other party - signifying your 'turn'.

You can also point the thumb to another person whose turn you want to emphasize.