Marek blushed lightly and glanced away as the thoughts he had in that moment easily passed his lips without pause. "I don't think the grey hairs make you seem old either. It looks very nice on you." And it did, to Marek. He thought it made Jack look rather distinguished.
At the mentioning of wanting to hear Marek play at some point Marek's eyes blinked and he looked up, surprised by this. Surprised that Jack would take such interest and pleased. Though there was a part of him that said Jack could just be saying it to say it. That little part of him that had appeared after Basil. "Anytime, sir. I would be happy to play for you." He grinned widely. "Oh, the Greeks are interesting. History period is interesting. Well, not so much all the wars and fighting and the just plain bad things. But it is still very interesting."