"I didn't exactly plan on getting caught," Oliver replied with a wide, cheerful smile, oh-so easily pushing aside the fact that he had been caught. Again. It was evidently just a matter of time until he would be caught be the wrong people. That realization was repressed as quickly as it came and Oliver's smile turned teasing.
"You lie almost as badly as I do, lass. But that's fine with me. I prefer honesty anyway." Oliver looked at her for a moment as the pieces fell together. Not in Hogwarts plus Hanging out in Muggle neighbourhoods in the middle of the night came together to add up to Muggleborn in hiding. Oliver's mind flashed to Thad, the Muggleborn friend he had failed to help, and something twisted in his stomach. He might be able to help the girl. He had to help her - if only to make up for the fact that he had allowed Thad to be taken.
Growing serious, Oliver took a step forward and extended his hand. He knew he was taking an insane risk with this. "My name is Oliver. Perhaps I can help you."