Henri did not understand the concept of subtlety. She was not one to move quietly, or discreetly, or even politely. She liked to make an impression, and the impression that was typically made was a very loud one. She thought that no one remembered a girl who was quiet, no matter how great she was in every other way - Henri simply could not see any benefit in being quiet.
So, she sang. She preferred American muggle rock, as that was what she had been raised on. Even though she was technically sneaking off, her manner was anything but sneaky. The American girl absolutely loved attention, good or bad, and she was definitely getting a little of both from those she passed.
"THEY TRIED TO MAKE ME GO TO REHAB, I SAID NO, NO, NO!" The irony was, as she walked, she fished through her jean pockets for a cigarette. Her classes were over, so she was wearing a more causal, comfortable outfit in lieu of the frumpy Ravenclaw uniform the school had forced upon their students.
She found her cigarette and placed it between her lips, as she growled the ending lines : "Just try to make me go to rehab, I won't go, go, go." With the conclusion of the song, she turned upwards and began to ascend the staircase up to the Astronomy Tower, her lips wrapping around the cigarette. She raised her wand and tapped the tip of it to the end of the cigarette, effectively lighting it.
As she was doing this, she reached for the door and ran into the surface, so distracted by the nicotine she was. "Damn it all to hell!" she grumbled, before pushing open the door.
She looked up, seeing she was not alone. Henri didn't know the girl - she had only been in Hogwarts a few months, after all. She hardly knew anyone, though she was slowly but surely becoming famous for her antics. Henri smiled at the girl, deviously amicable as she needed to be. She did have a reputation to maintain, after all. "Hey! Mind some company?"
She went and approached the ledge the girl was sitting atop. She leaned her head out into the air and blew some smoke out. She plucked the cigarette from her lips and turned to survey the girl. "You have nice hair. You know, putting a blue or purple undertone under the top layer of hair would really make it pop."