Similar to how the various regions in India have different customs and languages, the way in which heads are wobble also varies. You'll find that the further south you go in India, the more prevalent the head wobble becomes. People from states such as kerala are very enthusiastic head wobblers, whereas in the mountains of northern India, the gesture is less common.Without a doubt however, the head wobble is the one universal gesture that Unites all Indians. Cultural and language barriers miraculously dissolve with a wobble. It's definitely a case of "actions speak louder than words".