Gesture Sign language 24 Nonverbal communication 23 Body language 18 Psychological aspects 12 Language and languages 10 History 9 more ... Semantics 8 Human-computer interaction 7 Semiotics 7 Speech and gesture 7 Communication 6 Interpersonal communication 6 Language acquisition 6 Psycholinguistics 6 Computer simulation 5 Elocution 5 History and criticism 5 Origin 5 Speech 5 Study and teaching 5 Thought and thinking 5 Animal communication 4 Anthropological linguistics 4 Communication models 4 Communicative competence in children 4 Gesture in literature 4 Grammar, Comparative and general 4 Metaphor 4 Oratory 4 less ...