> I've had good conversations with strangers

Laptops sometimes have stickers. For a time, I instead had a transparent slip cover, to vary the sticker set, user-test alternatives, and throttle conversations. Science education topics (Boston/Cambridge subway). Anti-patriarchy stickers drew proto-MAGAs. Some backpacks now have low-res screens built into the back, suggesting new possibilities.

One Laptop Per Child, at its peak, generated fun continuous crowd conversations.

> a pair of glasses with a screen inside of them

I've no idea what current tech is like, but I use to proselytize aphysical UIs, where a small head motion results in larger screen motion, to reduce neck swiveling.[1]

> weirder

Laptop harness walking desks are a thing. And one can do hand and head tracking[2] (I had that setup at a meetup where the swag was little stick-on privacy shutters for laptop webcams :). Boston/Cambridge is perhaps culturally a best case for such games - I've not tried them in NYC... hmm.

> but something very complex, [...] instead sketch out a diagram on a piece of paper [...] keep a small notebook in my bag

Same. I've tried swapping in an iPad, but it hasn't stuck.

[1] silly old demo, 5k on a bus: https://x.com/mncharity/status/1225091755667853318 [2] https://imgur.com/a/keyboard-cam-Z1VipaL