Really, Loki's first question upon seeing William should be similar to the ones he's posed all the others he recognizes from the Barge, and he'll get there eventually. But frankly, when he first spots the man across the mess hall where he is clearly stalking a cleaning droid like he intends to make it his meal, he gets distracted.

He doesn't approach, at first, opting to watch from a distance, eyebrow raised. It's only after he sees William place a piece of fruit on the ground that Loki finally has to say something, has to know.

He makes his way over, moving smoothly and silently enough to not interrupt-- whatever this is, but clearly in William's line of sight. He pauses beside the man, glancing between him and the robot a few times before, finally:

"Is it going to do a trick?"