The first thing Nate thought was, "Oh, shit, professors." The second thing was, "Wait, it's definitely not past curfew yet." (Which was true; he was absolutely allowed to be at the Three Broomsticks. He was even allowed to be picking up alcohol. The fact that he was picking it up for an illicit, hey-guess-what-we're-alive party was perhaps somewhat more questionable, but he was going to ignore that.)
The third thing he thought was, "Oh shit, professors on a date."
Spencer Smith and Mikey Way? He couldn't say he was entirely surprised — he had several pages in his rumor journal devoted to them — but he was going to have to keep it from Adeline, or else she would never stop gloating. Fifth years could get so smug.
Were they cuddling? Nate had to admit, that was rather adorable. Obviously they were having their own hey-guess-what-we're-alive party.