🚀 go-pugleaf

In most countries a nod means "yes" and shaking the head from side
to side means "no".

I have heard from two independent sources that in Bulgaria
it is customary to nod when you want to say "no" and to shake
your head when you want to say "yes". (I have no reason to doubt
this; one of my sources has it from his Bulgarian colleague, my other
source has noticed it when visiting Bulgaria.)

How has a nod and a shake got its customary meaning, and why is
it different in Bulgaria?

Other customs I have heard of:
Ancient Greece: Nodding your head forward meant yes. Nodding your head
		backward meant no.
India:          Shaking your head means no. Tilting your head from
		side to side means yes.

Comments anyone? Explanations? Other customs?
-- 
Claus Tondering
Dansk Data Elektronik A/S, Herlev, Denmark
E-mail: ct@dde.dk
------------------ When nobody is looking at it, this sentence is in Spanish.