What does Harry join Oliver in doing each day?

picking flowers;

"It is worthy of remark, and Oliver did not fail to note it at the time, that his morning expeditions were no longer made alone. Harry Maylie, after the very first morning when he met Oliver coming laden home, was seized with such a passion for flowers, and displayed such a taste in their arrangement, as left his young companion far behind. If Oliver were behindhand in these respects, he knew where the best were to be found; and morning after morning they scoured the country together, and brought home the fairest that blossomed."