A walk doesn't need to be an event. It can be the space between finishing a task and starting another, or a reason to take a look at a street you usually hurry past.
Choose the easy version
Pick a familiar route and a time when you aren't rushing. A short loop close to home is a perfectly good starting point. Wear something comfortable, consider the weather, and choose surroundings where you feel safe.
Give it a place in your day
Try placing a walk next to something already in your schedule: after lunch, before an evening at home, or while taking a break from your desk. Treat it as an option you can return to, rather than a rule you have to follow.
Notice something new
Look for a detail you haven't noticed before — a garden, a building, the changing light. You don't need to record a distance or make the next walk longer. Let this one be enough.