Loki cannot help. Any food he had cached has already been given to his alternate to bring into the camp. Hunting was possible for a while, but the prey is scarce now. He would be hungry, himself, if he were not so thoroughly distracted by his own projects, by shape-changing and shamanism.

That, and no one has specifically called upon him. That's probably for the best, and he's not really the kind of god one calls upon in this kind of situation anyway.

He likes Runa, though. And as she reminisces, she may hear a small, sweet voice singing a children's song about the very topic she's meditating upon. The singer sounds male, but whether she recognizes the voice as Loki's or not, and how soon, remains to be seen.