I recently interviewed an engineer who was somehow using ChatGPT realtime on another laptop beside him. The irony was that the questions were pretty simple overall and our rubric also wasn't very strict, so he likely would have passed if he just used his memory and common sense. Though the answers weren't wrong overall, I still felt cheated because of the deception and had to reject him later.
I rejected an applicant earlier this year who was obviously reading off another screen for every answer (as in, blatant pauses while I could literally see their eyes moving back and forth). I don't understand if they thought I wouldn't notice or what.
I at least look up toward the ceiling while thinking so maybe that’s sufficient to not give off cheating vibes.