The Nod

The head is slightly tilted forward.

Meaning

Disapproval
The person has a critical judgmental attitude about the other person or the current topic.
I think nothing of it!
or Greeting
The person nods and greets with a slight bow.
Hello!

Explanation

How long the head is tilted and the context provide information about the meaning of this gesture. A critical look over the reading glasses reminds of a teacher and can be intimidating.

Categories

face
defensive