Asking general questions over the device also gives Wen Ning something akin to stage fright. He might not be able to see everyone, but he knows that everyone on the train can hear him. It makes him quite nervous, so that's something he'd rather fall back on as a last resort.

"Who is it? I-I mean, I'm not going to go bother them about things right and left, but it would be good to know." There are already people on his team who have been helpful. It's his hope that he can eventually learn from just watching so he isn't constantly bothering people in order to figure out how the most basic of items work. It would surely get annoying to others after a while unless they really enjoyed flaunting their superior knowledge on the subject.