Water, a great greeting
It is not a question you need to ask a guest. Simply present a clear glass of your finest, H20, no ornamentation needed. Most short visits will not accept a refill.
Probably, they would politely refuse if you had even asked. Perhaps with good reason as they may leave the glass untouched.
That’s fine. The evidence of a guest in a clear clean glass is a nice leftover.
Of course it is best if you place it quietly beside them, where they sit or the counter they stand by. Be sure to take a sip of your own. Likeness begets.
Water is a privilege and a necessity. It is not offered as a status symbol. We are blessed if we have running water in our home, a clean glass to serve it in and perhaps a tincture to add..a lemon slice, a mineral supplement, a tea. Those don’t come from the tap, so start simple, with an unchipped vessel and let the visitor enjoy or cater it to what feels best.
Again, it is not a question you need to ask. Just place it quietly in their space and let it flow from there..