"Jack paused for a moment and stared silently at the corpse."

About to knock, Jack paused; he felt for the doorknob.

Jack, searching far out on the field, paused to look again, then started back.

Jack paused, and allowed himself a smile as he shook the offered hand.

Jack paused, looking for a break in the forest.

Jack paused, and he didn't like the direction his thoughts were taking him.

Jack nodded and paused for a moment while he thought.

Jack paused to give the jury time to feel the veteran's anger.

Jack paused, not quite sure how far to press his point.

Jack paused, allowing himself to lean forward a few inches.