I kept my arm hard and level across his chest.
I noticed that they kept looking beyond us, across the river toward the mainland.
I kept on across the plain, stumbling, falling, getting up again.
He kept his eyes on a jeweler's doorway across the street.
He kept his eyes on the trail opening across the meadow.
High above the forest he winged to where the tower kept its watch across the sea.
We worked to keep vision across the field and see the guy coming at us.
It was men like these who kept the peace across many cubic light-years.
Keep in mind, though, that it takes a great deal more energy if the contact isn't expected and assisted, especially across such a distance.
Then I showed him the photograph, keeping my thumb across the writing.