I tapped again and again, and eventually located the exact position.

She tapped at the keyboard, stared at the screen, tapped again.

Then the corners of his eyes pinched, and he tapped again.

He waited a few seconds and tapped again, much louder.

Then he tapped again and a woolly sort of voice from inside said, Go away.

He tapped again at a panel by the floor.

She tapped again, using the tips of her fingers, to make only the softest sound.

But here and now it was gray New York daylight, and the finger tapped again.

I tapped again, and on the second attempt my clockwise pressure turned into a full rotation.

She tapped again, a little louder this time.

Claudel tapped again and Frog hit the handle.

With that he tapped again and a second machine began spewing a fully formed contract of servitude.

After a few seconds he tapped again.

He tapped again and winked at me.

'This' was of course the dispatch which he tapped again.

He tapped again, missed again.