Ideally, take yourself outside in an urban space. If outside is unfeasible, inside at a window will do, to hear or look depending on which senses work best for you. Sit, stand or walk as you prefer – make sure that you are safe to ignore things like traffic, pick somewhere you can afford not to be paying too much attention to human activity. Humans are nature too, but for this exercise, it’s all about other-than-human nature.
Look around. Or listen out. Wait until you notice some other-than-human life. It can be anything able to self determine – plant, bird, insect, you could see a mammal. Take the time to observe this wild and living thing. If you’re really stuck, a domestic pet or exotic garden plant will do, but if you can find a wild thing, so much the better. Going to a safe green space and touching the grass is worth a go if other senses don’t help you much.
Try to imagine how the space you are in looks, feels, smells etc from the perspective of the wild thing you are observing. It lives here too, it will be relating to this urban space as its home, its habitat. Contemplate how that works.
You are also a wild thing living in this space.