As far as Raf knows, he's just getting an extra set of eyes. And Arcee's served as a scout before, hasn't she? So she's probably even better than he is at finding things he can use. In this case...a bag that's not falling apart on him. Leaving him to scour for parts he can try and salvage.

At some point, he'll need to learn how to solder, he thinks. But he returns the smile with a thankful one of his own. "Thanks, Arcee." And then he pauses, just a moment. "Um, I wasn't pulling you away from something else, was I?"