My knuckles were white where I held down the transmit button on the radio.

He had to make himself remember to thumb the transmit button.

He reached for the transmit button, then decided to type an additional line.

He pushed the transmit button, then looked up at the windshield.

But all he did was push the transmit button and say, "You first."

He touched the transmit button on his radio and spoke a name.

He looked down at the link, hit the transmit button.

He lifted the radio to his mouth and pushed the transmit button.

He opened his eyes then and pressed the transmit button, the decision made.

He ignored the question as his finger found the transmit button.