Appendix:Gestures/my lips are sealed

Production

 * 1) Touch the tips of the thumb and the index finger of one hand.
 * 2) Keep the mouth closed during the next step.
 * 3) Using the tips of the thumb and the index finger, touch one side of the mouth, and slide these fingers to the other side of the mouth.

This gesture indicates closing one's mouth with a zipper.

Interjection

 * 1) my lips are sealed the person doing this gesture is promising to keep a secret.
 * 2) * 2012, "The Inconveniencing", season 1, episode 5 of 
 * Wendy: I may or may not sneak up here during work, all the time, every day. Uh, you guys aren't gonna tell Stan about this, are you?
 * Dipper: [smiles, and touches the tips of the thumb and the index finger, and slides them on his closed mouth.]
 * Wendy: [smiles, and does exactly the same gesture]