"Thank you," Marcus replied with a slight roll of his eyes, and even he couldn't tell if he was being serious or sarcastic. He was more than happy to let the subject of Roger drop though, and he was glad that Susan didn't seem to want to push the matter, even if she might have been teasing him about it.
Marcus could feel his eyebrows going up in something like disbelief at Susan's explanation of a telephone, and even though he thought it might make his brain hurt, he asked, "So, like, a Floo-call without the visual?"
At her question, Marcus shrugged lightly as he answered, "I hadn't thought that far ahead, honestly." At this point in time, he was more concerned with not having the Mark be something he carried around with him all the time.
Glancing at the television when she gestured to it, he nodded as he said, "Roger had it on the last time I went over. It was something about a pirate called Jack Sparrow."