One only has to look up at the sky to see why.
He looked up at the sky and then out to his fish.
I turned away and looked up at the blue sky.
You look up at the sky for help, but no one is there.
The big man stood for a moment and looked up at the deep blue sky.
I told her about it, and she looked up at the sky.
He looked up at the sky and said that I might have enough time.
He looked up at the clear night sky for a moment.
It looked up at the sky and felt pretty good.
He found her standing outside looking up at the sky.