a) Facial expressions are critical in sign language communication because they convey grammatical information, emotions, and nuance that cannot be expressed by hand signs alone. They function

a) Facial expressions are critical in sign language communication because they convey grammatical information, emotions, and nuance that cannot be expressed by hand signs alone. They function similarly to tone of voice in spoken languages, indicating questions, statements, or intensity. b) Body movements enhance the meaning of signs by providing additional grammatical information, context, and emphasis. Head tilts, shoulder movements, and body shifts can indicate roles in a conversation, show agreement or disagreement, or modify the intensity or extent of an action. c) Common mistakes hearing learners make regarding nonverbal communication in sign language include neglecting non-manual markers (facial expressions and body movements), over-emphasizing hand movements while ignoring the rest of the body, and misinterpreting cultural nuances conveyed through nonverbal cues. They often treat sign language as purely manual, missing crucial elements of its grammar and expression.