"Curious Rituals" is a research project conducted at the Art Center College of Design by Nicolas Nova, Katherine Miyake, Nancy Kwon and Walton Chiu, in July and August of last year. The four published their findings on our gadget-enabled society in an ongoing blog and a book [PDF] as of last September.
It is nothing short of brilliant, a comprehensive index of the gestures, tics and related epiphenomena organized into seven categories of vaguely anthropological rigor. (The authors also extrapolated their findings in a short film of several hypothetical not-so-distant future scenarios, which I found rather less compelling than the book.)
(via 'Curious Rituals' Examines Technology-Induced Gestures & Posture - Core77)