Do what? Have faith in him? Oh, well done, Jim Kirk; you're really challenging Loki's ability to cling to this role he's selected. Part of him wants to laugh out loud, and another part wants to read out a litany of his own sins just to make sure the other man knows exactly who and what he's talking about. Neither of those are things Thor would do, though. He keeps his recriminations light, as if Loki's worst deeds involved stealing the last piece of pie, not threatening the lives of millions.

It's an effort to keep his expression neutral. Hopefully it comes across as pensive rather than shocked or grim. Apparently they're shaking one another up in this conversation, though, and the sight of Kirk clenching his jaw is enough to remind Loki of what his goal in prompting this chat was.

"Someone important to you?" He ventures to guess, and his one visible eye is cool and analytical. "Someone no longer present in your life."

A loss, then. He's guessing, extrapolating based on what he sees and senses, but he doesn't doubt his guess. He looks back into his coffee cup, sparing the other man the piercing stare. "A strange quirk of the multiverse, then, to provide the same face for different people."