What impression do we form of Laura in her interaction with the marquee men?

From Laura's interation with the men who's arrived to put up the marquee, we can infer that she loved to arrange thing, but that she was rather shy and nervous when actually put to the task.

Away Laura flew, still holding her piece of bread-and-butter. It's so delicious to have an excuse for eating out of doors, and besides, she loved having to arrange things; she always felt she could do it so much better than anybody else.

"Good morning," she said, copying her mother's voice. But that sounded so fearfully affected that she was ashamed, and stammered like a little girl, "Oh—er—have you come—is it about the marquee?"