Although Charlie was her professor and she technically saw him several times a week, she hadn't actually spent much time with her older brother in quite a while. The past few months had been largely taken up with Sam related activities. Not that she was complaining, not at all. Being with Sam made her insanely, giddily, patronus-producing happy, but it also meant she didn't have much time for other people.
Sam had seemed content to puck at her guitar, so Ginny had given her a kiss and left the common room, heading for Charlie's office. "Hallooo," she called out, knocking on his door, loudly and obnoxiously.