Do I need to sign the words 'is' and 'your'?
No. ASL has its own distinct grammar and does not use 'to be' verbs like 'is'. Additionally, while you could technically add the sign for 'your', simply signing 'HOW DAY' with the correct questioning facial expression perfectly and naturally conveys 'how is your day' in conversational ASL.
Why do I have to furrow my eyebrows?
In ASL, facial expressions do more than show emotion; they provide essential grammatical information. Furrowed eyebrows are the specific grammatical marker for 'wh-' questions (who, what, where, when, why, how). This expression clearly signals to the receiver that you are asking an open-ended question requiring a response.
Can I sign 'day' with a flat hand instead of my index finger?
Yes, absolutely! The sign for 'day' can be formed using either a 'D' handshape (with just the index finger pointing up, as shown in the video) or a flat 'B' handshape (with all fingers extended and together). Both variations are completely correct, common, and widely understood.