| A | B |
|---|
| One type of non-manual behavior | facial expressions |
| Another type of non-manual behavior | head movements |
| One thing shown by non-manual behaviors | affect |
| Another thing shown by non-manual behaviors | emotion |
| One grammatical function of non-manual behaviors | emphasize a point |
| Another grammatical function of non-manual behaviors | ask a question |
| A third grammatical function of non-manual behaviors | make a negative statement |
| One kind of question discussed in the article | yes/no |
| Another kind of question discussed in this article | wh-word question |
| One thing a "wh- question" asks | who |
