Remus shakes his head at the other boy, but he doesn't speak up to correct him, letting him revel in tormenting the first years, even if he didn't quite approve. Let them squirm a little, there isn't any real danger in it.

"You're terrible," he tells Sirius quietly, once they've passed the younger children. "And overdramatic. Your position remains the most good-looking of the Marauders, even now. Though I appreciate the sentiment that you think there's hope for me yet." He glances aside at Sirius, raising an eyebrow at him as he lets him continue to lead him on through the train.