This beginner was having trouble with puffy cheeks, as beginners often do...
ME: So have you gotten to practice in front of a mirror, like we talked about over the summer?
KID: Umm, my horn hasn't been home yet.
ME: You haven't practiced at home at all?
KID: I haven't really figured out how to take my horn home yet.
ME: Figured it out? What do you mean?
KID: Do I come get it after school?
ME: Yeah; you don't have to carry it around to all your classes or anything.