What country nods to say no?

A nod of the head is a gesture in which the head is tilted in alternating up and down arcs along the sagittal plane. In many cultures, it is most commonly, but not universally, used to indicate agreement, acceptance, or acknowledgement.

There are few exceptions with some countries swapping the meanings between nodding and shaking head: in Greece, Macedonia, Bulgaria and Albania a single nod of the head up (not down) indicates a "no".