He tapped a button to bring up a different screen.

She tapped a button and made the faces go away.

He reached forward to a control panel on the table in front of him and tapped a button.

Then he reached over, tapped a button on the inside, and the door slid closed again.

He tapped a button, and a rush of cold air drove out the heat.

She tapped a button that cut off the radio outlet.

The young man nodded, hand shaking as he tapped a button.

The game was a series of short cartoons containing points at which you needed to tap a button.

Once all three were together, he tapped a button on his remote and the wall slid shut behind them.

He tapped a button to light a screen and get the picture being relayed to him.