Nikola arches an indignant eyebrow. The swearing he'll admit to but he's fairly certain he's not exhibiting any signs that he might actually (god forbid) cry. He sincerely hopes he hasn't come to that point. It's been decades, after all, since he has.

"You speak Serbian?" is the question he goes with. Not that he's under any illusions that the tone of his voice couldn't have given away the content of his speech.