- Semantics refers to the study of meaning in language, not non-verbal communication.
- Phonetics deals with the study of speech sounds, not body movements or gestures.
- Kinesics is the study of body movements and gestures as a form of non-verbal communication, which includes facial expressions, posture, and mannerisms.
- Linguistics is the scientific study of language, but it doesn’t focus on non-verbal communication.
Step 1: Analyzing the terms.
The term that best fits the study of non-verbal communication, such as gestures, facial expressions, and body movements, is Kinesics.
Final Answer:
\[
\boxed{\text{The correct answer is (3) Kinesics.}}
\]