Luc would have been lying if he said he hadn't expected someone to actually open the door when he knocked. Granted, he expected it to be the wrong person, but he still wasn't exactly prepared for someeone to call out from behind the closed entryway. And, of course, having not heard her voice before didn't make him feel any more confident that he had indeed found the right apartment. Go Haust.
"I - uh, it's Luc? Your upstairs neighbor?" He cleared his throat and shifted the munchies in his hands around so they were more comfortable to hold - since clearly he wasn't getting to set them down just yet.
"I don't mean to be rude, but I'm looking for Lucy and I don't know if I have the right apartment number, actually.." he admitted, and he hated that he had to raise his voice just that little extra so he could be heard through the closed door - because he already sounded like a dumbass for having to say it in the first place; the fact that now he was going to have to say it louder so she heard him was just making him feel even more like one. Nevermindd that he already looked like one, standing there with an armful of stoner snacks and a joint rolled behind his ear. Causing a ruckus - he could already picture having the cops called on him for being too loud and suspicious outside someone's door.. yeah. And the explanation to the cops would be amazing, especially if he or she could smell the rolled dank hidden in his hair. This could go really well, he could just see it.