He stopped a moment, tapping the frame with his fingers to shake off the dust.
She did not say any more, and he sat at the table, tapping on it with a pencil.
I was tapping away at the door of his recollections, camera all ready.
Then tapping the breast-pocket of his jacket: “And yet I am the force,” he went on.
I let her in upon her tapping, and asking (half out of breath ...