The strong visual aspects of sign language require this book to divide questions into two categories. The first category is the “wh-” words: who, what, when, where, why, which, and how. Questions that use these words ask for specific information. The second category is “yes-no” questions. These questions can be answered with a simple yes or no.

Both of these question types need to be supported by specific facial expressions with nonmanual behaviors. Nonmanual behaviors do not use the hands. Instead, these behaviors use the eyes, facial expressions, head movement, body posture, or body language. Signers use nonmanual behaviors to show emotion, emphasize a point, make a negative statement, and ask questions. Facial expressions are equal to vocal intonation. When you do not apply the proper facial expressions and nonmanual behaviors, your questions may not be interpreted correctly.