Marcus accepted the drink provided, raising it in an imitation of a toast to Blaise before taking a small sip. While he didn't drink overly much, one beer was perfectly acceptable in his book, knowing himself and his limits. And it would be impolite to refuse, since he had no real reason at this point in time.
Raising one eyebrow slightly at the comment, he stated dryly, "Must have been a hell of a trick to get you to fall for it." Blaise could clarify if he wanted, but Marcus wasn't going to push for an explanation.
"It's a shame Pansy couldn't join us," he commented, in reference to the journal entry that he gotten them here in the first place. "I haven't seen her in a while." Actually, he hadn't seen much of anyone outside of Quidditch in sometime, something he should probably rectify.