Oliver couldn't remember Tristan Rivers. He was sure they'd gone to school together but seeing as how Tristan was from a different House he wasn't too surprised that he didn't remember him. Oliver was kind of all about Quidditch and little else in school.
He wore the brown pants he'd worn on his date with Angelina, and a striped brown and black sweater. He was attempting to look good, just in case things went well.
He spotted a fellow with damp hair and he was pretty sure that was his 'date' for the night. He headed that way, an easy smile tilting his lips, "hello mate," he said with a little wave of his hand, "You're Tristan, right?"