On an outing or a walk around the neighbourhood, observe the people, places, and things surrounding you.
Find unique signs, items of clothing that grab your attention, postures, elements of traffic, how nature interacts with its surroundings, etc.
Make a list of observations on your adventure on your cellphone or on a small notepad.
Select 3-5 observations from your list and create mind maps.
Choose one mind map to further develop into a poem of any length.