Sirius was the type of student who, if he tried hard enough, could understand the academic language. Trouble was, he didn't care to try. He was brilliant in charms and transfiguration, but all the other classes took so much effort. He loathed studying, and preferred subjects that just came naturally to him. Without any effort at all, Sirius had done pretty swell for himself, and was rather proud. He certainly enjoyed parading around Evans at the end of the year, keenly telling her studying wouldn't have helped any. No one really cared if you got an A or an O in your NEWTs and OWLs anyways. All that matter was you earned a passing grade. At least, that's all that mattered to Sirius. And the Potters seemed pretty good with that, which made Sirius feel even better. As for his own parents? He couldn't care less.
Before Juliette had told Sirius to come in, he'd already taken a step or two beyond the door. Manners weren't Sirius' best thing, to say the least. "Evening," he said brightly. Sirius narrowed his eyes slightly and got a good look at the teaching assistant. He decided she was hot in that 'weird hot' type of way. Basically speaking, Juliette wasn't the type Sirius would normally go for, but then again he didn't normally go for older women. Walking up to her desk, Sirius stuck his hand out. "Sirius Black, but you can call me Potter if you'd like." Sirius grinned, assuming the new assistant didn't quite know his situation. At this point in time it hardly bothered him anymore.