Step 1: Place your index finger on the front of your chin.
Step 2: Draw your chin away from your finger as you pull your chin in. This is basically a nodding movement with your head, as if saying “yes,” without dropping your head or looking down. You should feel a gentle pull in the back of your neck.
Step 3: Hold for 2 seconds while your chin is in.
Step 4: Do 2-3 slow repetitions.