Sit down, empty page in front of you and a pencil in your hand. Don't listen to your mind or heart, your inner voice. Chart what your senses are perceiving around you. Down to the small details. The sounds, the smells, the sights, the tastes, the touch.
Wait as long as you like - for a set time, or for a set page-space, or simply until you grow tired...but generally the more you wait, the more you'll begin to notice.
Enjoy your microcosm.
As usual, feel free to participate. The more, the merrier!