There is a measure of gratitude he feels at the response Loki gives regarding the warlock topic. And perhaps it would be good for Diabhall to also state things from his own side on the matter. With Loki's fervently inquisitive nature, it would make sense too for him to know multiple perspectives.

Of course, then that attention has moved away from Diabhall for a moment and onto him. The finger under his chin is disarming enough, and he wordlessly nods at Loki's request. At most, he can muster a little affirmative hum that he will be here, waiting.

And then Diabhall says he's leading and Allumin is stunned. Not out of doubt that he's not capable but surprise that he has chosen to do so versus, what he has come to understand, the man's usual inclination towards relinquishing power to others. He watches them both head off to the dance floor, and had been intending to busy himself with another glass of wine or maybe an attempt at conversation but now he can't help but be curious, wanting to watch.