Are you deaf? Ever had a long conversation with a hearing person who does not know how to sign? If you did, did you bluff your way through? Nodding your head pretending to understand everything he's is saying? Or were you really more frustrated than you cared to show? Or perhaps you have the secret fear of meeting with hearing people? Ever wished you could find a better way to communicate than to bluff and get 100% communication gain instead? It's pretty easy if you know how.
Watch this video.
Watch this video.