Rabastan watched his brother...Swipe at his eyes? He wouldn't cry in public, would he? No, this was Rodolphus, he had more control than that. Rabastan shook his head, and decided he best go with Rodolphus, if just for the moment. Otherwise, he might snap and murder the whole lot of them, which might not be a terrible thing.
He looked toward the table, trying to identify the occupants as they made their way over. Rabastan noticed a young woman, was that the Granger mudblood, making her way toward himself and his brother. Imperceptibly, Rabastan nudged Rodolphus, trying to get him to notice the woman.