Sometimes people are primed to hear in a certain way. When a word like braggadocious suddenly appears, it's like, 'What, is he just making that up?'

Hillary Clinton has been portrayed as robotic, someone who is trying to approximate real human emotion.

Donald Trump himself has an idiosyncratic speaking style that relies on simple words and phrases, which worked for him in the primaries but may be coming up short for him now.

Even if you close your eyes, you'll still hear Donald Trump sniffing. Linguists might call [these visuals] paralinguistics, every form of information including facial gestures and facial features. Obviously these things get scrutinized in tremendous detail, so that a cough can be of outsized importance. [But] that's all part of the package.