450 GG Is Sign Language Universal?

Tons of fascinating tidbits about sign language from interpreter David Peach Follow along online: http://j.mp/1EQ3dsJ Find David online: http://twitter.com/dpeach http://learnsigns.com Sponsor: http://AudiblePodcast.com/GG Try my iOS game, Grammar Pop: http://j.mp/1H5YiSj