Puck knew how to read people and beings. It wasn't just a part of his job, it had been part of the form he took. Easier for a sunny disposition type to make friends, pick up information while occasionally sharing some, and generally observe life as much as he lived it. For all of his glib 'fae rules don't apply to me', Puck kept the idea of like with like close to his metaphorical chest. Loki had shown a lot of courage, trust, and understanding on a variety of topics, Puck himself included. Puck would have reacted in kindness regardless of the self imposed rule.

At the emotions running through Loki's eyes, Puck pretended to not pick up on any of them. There was no need to, and it wasn't his place to do that. He smiled at the nod and the unspoken thank you before he answered. "I'll be acting in my role but with some very good performers alongside."

A beat before Puck said simply instead of leaving it unsaid: "I know your strength comes in a lot of forms."