Do you do this too, sometimes feel compelled to put yourself in a public place and... look at stuff?
My workplace is very close to where I live, so if I do my normal introverted thing and just scoot on home after work, I find after a while I get cabin fever. It's become a sort of habit to more or less schedule time to not go home. I'll stop in a place that allows me to stand up in a relaxed fashion and just... look at stuff. People and environments.
I'm aware of a sort of meter, too. If I don't sometimes do this stop-and-stare thing, it feels like something is lacking. And when I do do the stop-and-stare, then after a while the meter is on full and I can go home satisfied.
Crowds of people are good. Built environments work too. Open spaces, like vistas down a long piece of road are soothing. Closed-in environments with walls and buildings blocking the sky are uncomfortable.
Dunno what it is. Se practice, maybe? Topping up the Ni? Loitering with intent?