[header] How to use facial expressions in american sign language [title] Raising your eyebrows to mean you are asking a yes or no question. [substeps] ( raise eyebrows) sign-want ice cream the raised eyebrows provides the question mark to your statement, making it become a question. If you did not raise your eyebrows, then you are saying you want ice cream. 
[title] Lower your eyebrows to ask a w-question. [step] Furrowed eyebrows represent who, what, when, where, why, how.