A fun book, if maybe a little disappointing - it felt kind of padded-out, like more was sometimes written than needed to be. I was also hoping for more gestures that I'd never seen/heard of. I suppose that means I was hoping that there was a unique Ibo gesture meaning "check out the communications satellite" or a Uighur hand sign meaning "Hey, back into the yurt; here come some Han Chinese."
Good to have that whole "live long and prosper" thing cleared up finally. Also valuable: the entry for the 'smile', an expression long in need of thorough exegesis.