A familiar route can become invisible through repetition. You know where to turn, how long it takes, and which crossing usually makes you wait. That efficiency is useful. It also leaves a few details unseen.
For one walk, choose a theme rather than a destination. Look for lettering, doorways, plants, reflections, or the way light reaches a wall. Stay on an appropriate public route and keep ordinary safety and accessibility needs in mind.
Write down three observations after you stop somewhere safe. Keep them concrete. A faded sign is an observation; the claim that an entire neighborhood is forgotten is a much larger interpretation.
The Library of Congress analysis approach distinguishes observation, reflection and questions. Adapting that approach to a walk is an editorial exercise: first notice, then interpret, then ask what else you would need to know.
You might notice different scripts on shop signs and wonder about the area's history. That is a beginning for research, not permission to invent an account of the people who live there. A local archive or a publicly available history can add context.
Photography is optional. Some details can be kept in a sentence or a sketch. Ask before photographing identifiable people or private spaces, and avoid publishing location details that expose someone else's privacy.
The route may be exactly the same when you walk it again. The difference is in the attention you bring. Exploration can begin with a question in your pocket, long before it begins with a boarding pass.
Further reading: Library of Congress: observe, reflect and question