In ASL, we often use facial expressions in addition to hand signs in order to convey meaning. This is especially true when asking questions. How do you distinguish between asking a yes/no question and a 'wh question" (who, what, where,
when, why)?

the sentence structure and order in which you sign each word varies between yes/no questions and wh questions"

the orientation of the hands differs when asking yes/no questions versus 'Wh questions

what you do with your eyebrows and how your head is tilted is different when asking yes/no questions than when
asking 'wh questions"

where on the body you indicate the sign for question mark" differs for yes/no questions and 'Wh questions"