Dick carried a rifle, but he did not use it.

He merely watched the pink beads of flame among the bushes, while he stayed by the side of his colonel and observed the combat.
It soon became apparent to him that it would have no definite result.
Each side was merely feeling out its foe that night, and would not force the issue.

Yet the Southern line approached and some bullets whistled near him.

He moved a little to one side, and watched for an enemy.

It was annoying to have bullets come so close, and since they were shooting at him he might as well shoot at them.
While he was absorbed in watching, the colonel moved in the other direction, and Dick stood alone behind a bush.