"Who would like to be the first tonight for feelings?" - Due to his apprehensiveness about sharing his feelings, Jonas sets a melancholic tone for the chapter.
"Each December brings such changes" - This sets a hopeful tone with the anticipated changes December shall bring.
"...So Jonas laughed too and with his laughter tried to ignore his uneasy conviction that something had happened." - The tones is mysterious because it leaves the reader with a tense and uneasy feeling that this will effect the future.
"This morning we celebrated the release of of Roberto. - Since Roberto is thrilled to be released, it sets a joyous tone to the chapter.
"I knew that she wouldn't. And I think I knew that she shouldn't. But I wanted it so terribly." - Jonas' longing to bathe Fiona created a dark tone throughout the chapter.
"If you don't fit in, you can apply Elsewhere and be released." -Knowing there could be another option for life, made Jonas have a confident tone.