She brushed his offered arm away from her, advanced past him without it.
He jerked to a halt as something brushed his arm.
He sat closely enough that the sleeve of his shirt brushed my arm.
His elbow brushed her arm, and they both started nervously.
Something, a breath of wind, an air current, brushed her arm.
His hand brushed her arm for the third time in ten minutes.
It was almost as if someone had brushed her arm lovingly.
Something brushed his arm, without warning, and he leaped with shock.
One of the balls brushed his right arm and left an agonizing burn.
She brushed her arm and continued her story without a pause.