Walking is a wonderful way of practicing mindfulness. On a beautiful day, we might find it "wasteful" to do sitting meditation. Or when we have too much on our "monkey mind" and it's impossible to sit and meditate, take a mindful walk!
When we walk, just walk.
Every step we take can help us arrive at the destination of the here and the now. You have nowhere to go and nothing else to do. Walk in a way that we cultivate happiness, peace, and joy in every step. You can practice mindful walking when you walk from your house to your car, from one building to the other between classes, on your way to a meeting, etc.
When walking, focus your awareness on your breath and body sensations. It's always easier to start at a slower pace.
Enjoy the walk! Take a 5-minute mindful walk outside or inside.