Do you have anything prepared for this? Do you say, no but come back in a week?
Do you say, yes, here are four pre-gen character sheets, let’s play a random short one-shot?
Do you say, no we’d need to spend time prepping for D&D but here’s a simpler tabletop game which uses minis and dice, let’s play this right now instead? (for example, Shadowdark)
Or something else?
Even outside of home if someone is curious I sometimes just say a scene and ask what they’d do or where they’d go 🤷🏻♀️
You’re at the edge of a misty, dewey forest at the break of dawn. In front of you is a castle, and there’s the forest behind you all glittering from dewdrops on the cobwebs. The nearest village is six miles away; you could get there in two hours or so. There’s a well outside the castle a couple of hundred feet to the left of the entrance, which is right in front of you. Whaddayado?
It wouldn’t be as blorby as I prefer but it’d be an intro to the main gameplay loop.