That particular gesture is colloquially known as the Indian head bobble and generally means yesI understand depending on context . It ' s possible that the particular people you work with use it to mean yes , but not really but in general it ' s exchangeable for a head nod <| sep |> You ' re missing the point . If someone has 1 hour on X hero but 16 hours on Y hero he ' s objectively going to do better for the team with Y hero because he has more experience with Y then X . It ' s like saying to a kid on a bike to go ride a motorbike because it ' s faster . Again , this doesn ' t come down to role . You should play tank if you need a tank . But when people try to make you play a specific tank you MAY not be good with , then I think it ' s better to play the tank you ' re better with not the one your team thinks it NEEDS .