The head wobble is also often used as a sign that what's being said is understood.
For example, if you tell someone you'll meet them at a certain place at 5 o'clock and they wobble their head at you, it means that it's fine and they'll be there.
Other situations where you're likely to encounter a head wobble include:
- As an alternative to "Thank you” which is not commonly said in India.
- To acknowledge someone's presence. This can be particularly useful if you see someone you know across the street but can't shout out to them.
- As a gesture of kindness or benevolence, for example, if someone sits down next to you on the train.