The young captain stood alone and whistled happily at the stars in the sky.

He was whistling happily when they left, having sold three pistols in the space of ten minutes.

Ben, whistling happily, serviced his car in preparation for the long drive North.

He was whistling happily as if someone had tipped him a fiver.

Tony walked back to the car and got in, whistling happily.

He was whistling happily by the time the little task was done.

Then, in rare good spirits, he started downstairs, whistling happily.

Then he laughed and rode on up the gorge, whistling happily to himself.

He whistled happily, smiling back at them one final time.

Whistling happily at such a prospect, he took the lift to the administrative level.