This thesis examines verbal and non-verbal communication as complementary systems through which humans convey meaning, emotions, and social intent. Verbal communication refers to the use of spoken or written language to transmit information explicitly through words, grammar, and syntax. It is central to complex reasoning, knowledge exchange, and institutional interaction. Non-verbal communication encompasses facial expressions, gestures, posture, eye contact, proxemics, paralanguage, and body movement, often operating subconsciously and conveying relational and emotional content.
Nilufar et al. (Tue,) studied this question.