"Thank you," he said tiredly. He looked down at his papers and then shoved them into his briefcase for later. "Not my best work but I'd like to think I got the point across." His voice was gruff, heavy almost, as he spoke. He looked to the man who tapped him on the shoulder and then nodded. Other people were starting to get up and mingle. "This isn't exactly my area of expertise." He managed a half-smile, one that did not reach his eyes at all, which was strange given the laugh lines and such that wrinkled his face.