We can do meditation in various circumstances. Or rather, under all circumstances! We can meditate while driving car, while talking with a friend, when untied shoes, and while enjoying snacks and afternoon tea, and so on.
One popular choice is walking meditation. We can really practice meditation while walking: walking out of the room, to the workplace, and more. Let’s recall that there are three basic postures that humans do in their everyday life: standing, sitting, and lying down. Meditation can be understood as a "sitting", "laying down" and moreover "standing" activity. Actually, maybe our activities during the morning and evening consist of many standing position.
Walking meditation is a specific form of standing meditation. The trick is easy enough. As practiced in the state of sitting, we train our minds watching ourselves while walking. Feel our own foot, body, mind, …. swinging, stepping. One leg is lifted, one leg is stepping on the floor, as we breath as usual, we see the trees, people in their cars, etc. We are aware of them. Try to keep that attention and consciousness. We take care our conscious mind, then by day while walking we develop feeling of peace and healthy. Well, in a nutshell I think that's the walking meditation.