A noncommittal hum is all that comes in reply—the faintest curl to his lips before it disappears.

As for magic—

"I arrived with my own. Never bothered with what's granted here." He could; he simply hasn't any interest. Finds there are better uses with his time. At most, he's made small improvements to the Signs he already knows. "But from what I've seen, all of you are somehow capable."

There's an implication that Geralt considers this irregular. Until he landed on this sphere, mages and druids constitute a fraction of the population. Here, it's damn near impossible to come across someone who hasn't got some magical ability.