when you wish upon a smoke

My campaign to get my mom to quit smoking failed within a week, though now she does smoke outside which is nice. I need to go to Shinjuku today and she's been hemming and hawing about whether she wants to come with me. I've been waiting for about 2 hours for her decision. She is still undecided. She finally just went out to "Think on a smoke." I hope I'll get my answer soon.