Julien was slightly embarassed at the credit Alfie gave him for Alfie passing his OWLS - he genuinely saw it as all Alfie's hard work as all he did was shepherd the way. That and the fact that Alfie getting good marks made him feel as though he'd acheieved good marks too, regardless of his actual results, made him feel strangely guilty for being praised for his tutoring.
He shook his head a little and nibbled at his ice cream again in an attempt to hide. He looked over at the concerned tone in Alfie's voice when speaking to his other friend though; he hadn't felt anything different but then the other Hufflepuff had been feeling a decided shade of blue all day as far as his Sight was concerned.