The movement caught the attention of the V.A.D.in the window.

She glanced down, saw him, and, leaning far out, waved her hand in eager greeting and with a smile of warm friendliness.
He had only time to wave his hand in reply, when the head of the column drew opposite the gateway, forcing him to turn his back to the window and stand at salute.
The Commanding Officer acknowledged the salute, glanced up at the window, waved his hand to the group of nurses there gathered, then glanced back at Barry, with a smile full of meaning, and rode on.
After the band had passed the entrance, it ceased playing, and the men, catching sight of Barry and the smiling group at the window above him, broke softly into a rather suggestive music hall ditty, at that time popular with the soldiers: "Hello! Hello! Who's your lady friend; Who's the little blossom by your side; I saw you, with a girl or two, Oh! Oh! Oh! Oh! I'm surprised at you." Down the length of the column the refrain passed, gradually gaining in strength and volume, until by the time the rear came opposite the entrance, the men were shouting with wide open throats: "Oh! Oh! Oh! Oh! I'm surprised at you." with a growing emphasis and meaning upon every successive "Oh!" Barry's face was aflame and his heart hot with furious indignation.
She was not that kind of a girl.

She would be humiliated before her associates.

He glanced up at the window but she was gone.

The battalion marched on but Barry still remained, his eyes following the swinging column, his face still flaming, and his heart hot with indignation.
"Good morning, Captain Dunbar!" He swung off his horse, and there smiling at him with warm friendliness was the little V.A.D.
"I'm awfully sorry," began Barry, thinking of the impudent song of his comrades.