Looking for Alaska tone and mood.
The tone of Looking for Alaska changes as does the mood (this isn't necesarily spoilers but Alaska is a pretty moody character). Sometimes the tone is sweet and innocent, like when Alaska and Miles have their first conversation. So the mood is happy and optimistic. Sometimes the tone is for a "more adult pg-13 esc" and that makes the mood uncomfortable. I believe the mood/tone of the book always depends on the mood Alaska is in because she is the main subject/focus of the story.  The Colonel convinced Miles to take up smoking unintentionally because he was going to smoke anyway and it is apart of his lifestyle.Miles said, "The Colonel neglected to ask whether 4. I smoked, which 5. I didn't" (Green 14). But since he is trying to fit in and he just met Alaska (who he is obsessed with) it didn't take much to get him to start. He is not a good role model, what makes this absolutely halairous is his justification of his actions was three words, "when in Rome..."(Green 16) the only tone picked up from the Colonel is casual but the mood is awkward because the reader and Miles are trying to adjust to his lifestyle. But as Miles says, "when in Rome..." (Green 16) apparently it is ok going against your personal beliefs.