Choose a place to write about. It has to be a place nearby, one you can stand up and visit during your writing time.
Choose a place to write so that when you are sitting there you can’t see the place you are writing about.
Go take a good look at the place.
Go back to your spot and write about it.
Go look at the place again.
Sit down and write about it some more.
Do this many times.
(Here is a longer version of these directions.)
Maybe you will write something like this: