"While cruising through the LIFE archive, I found a mesmerizing series of images of Mr. Billingsley demonstrating his own brand of nightclub-code via hand gestures. The full set of images are below." Brilliant.

Depicted as a grid by artist Susan Wolf; to circumvent the large number of languages spoken in Joburg, taxi drivers have official hand signals to take you from A to B. This PDF shows all of them. (via Bobulate)