Chinese Hand Dance
Adam Rifkin stashed this in Dancing!
Let's go to the videotape...
The performers are Chinese, and they're all deaf, too.
They're also appearing in "Samsara" (8.4 on imdb):
It's Dunhuang Dance from the historical town on China's old Silk Road. Read more.
See also: http://en.wikipedia.org/wiki/Dunhuang
Related: Thai classical dance is influenced by India and probably developed during the Ayutthaya period (1350–1767). http://www.xip.fi/atd/thailand/thai-classical-dance.html