Read it through once

If Jo had not been otherwise engaged, Laurie's behavior would have amused her; for a faint twinge, not of jealousy, but something like suspicion, caused that gentleman to stand aloof at first, and observe the new-comer with brotherly circumspection. But it did not last long. He got interested in spite of himself, and, before he knew it, was drawn into the circle; for Mr. Bhaer talked well in this genial atmosphere, and did himself justice. He seldom spoke to Laurie, but he looked at him often, and a shadow would pass across his face, as if regretting his own lost youth, as he watched the young man in his prime. Then his eye would turn to Jo so wistfully that she would have surely answered the mute inquiry if she had seen it; but Jo had her own eyes to take care of, and, feeling that they could not be trusted, she prudently kept them on the little sock she was knitting, like a model maiden aunt.