Scored Staring Contests

This would be like sword fighting but using the gestural information from two faces in a staring contest. You could use crowsourced data, biofeedback, psychological data, and statistical data to determine point structures and gamify the learning process so the players could be trained to get better.

This would also be a way to make gestural negotiation more accessible to people who have the types of disabilities that prevent them from participating. And it would codify that language and allow for robotic augmentation.