touch somebody on the arm

The second security officer touched the first one on the arm.

One of them just touched me on the arm and I don't remember anything after that.

She touched him on the arm and he turned to look at her.

She had to come back and touch him on the arm.

He touched a control on the arm of his chair.

He smiled though, and touched his friend on the arm.

He touched her on the arm and said, "Thanks for giving me the chance to say so."

She touched a control on the arm of her chair.

At the door to the head she touched me lightly on the arm.

The girl reached out and touched him on the arm.