When I begin to sing, watch that window." He retreated hastily to a position on the main drive, and began in a deep roar, coupled with an unsteady gait, the following ditty: I am a Soldier A jolly British Soldier; You can see that I'm a Soldier by my feet … It had been a favourite on the gramophone in Tuppence's hospital days.
He stayed firmly in place while he sang, his voice shrill and unwavering. 
He didn't stay firmly in place while he sang, his voice shrill and unwavering.