Only one of them was standing by the window, looking out.

Then she stood by the window thinking for a while.

He stood by the window, however, instead of going in at the open door.

He got up and stood by the window looking out.

When he came out she was standing by the window.

I used to stand by the window and look out.

He was standing by the window, his back to her.

When I left her she was standing by the window again.

I used to stand in the dark by the window.

She looked up at him where he stood by the window.