Answer: Language without communication
Step-by-step explanation:
Language without communication is defined as communication in which message is shared or exchanges between people without using verbal means.Non-verbal methods are used for communication such as body language, facial expression, actions etc.
According to the question, Mrs Watts and Jason are involved in communication without any language.Mrs. watts told Jason to sit through action .Jason did not properly understood the message through this medium so, he nodded but didn't sit.