Kili had listened intently as Saeril told him of the forest. These were stories that he would never tire of, and he smiled fondly as he remembered the gifts he and Fili would find. "Once we've reclaimed Erebor...I would like us to return to Fangorn Forest. Just you, Fili, and I." 

Later that evening, Kili had indeed grown bored. Unlike earlier, he was quiet in thought, and he'd chosen not to join the others yet. Instead, he was sprawled out on one of the cot-like chairs, staring up at the gazebo ceiling.
When Saeril mentioned that he should go wash up, he hesitated until she added on about their previously discussed view. "[i]Really?[/i] Could we go now?" Kili sat up straighter, then rose to his feet. "I can wash up later," he promised, as he had his heart set on flying. Somehow, bathing sounded a lot less fun than flying.