You’ll probably notice that they shift back and forth ever so slightly. That’s because she’s using what most newscasters, politicians and even musicians use today: a Teleprompter.

Invented in the mid-1950s, the TelePrompTer (as the original model was officially spelled) was similar to a set of cue cards, except the text scrolled by on a video screen. It was first embraced by actors on daytime dramas, who had to memorize hundreds of pages of dialogue daily, far too many lines to print on cue cards. Today’s Teleprompter screen is directly in front of the camera lens, and the text is reflected into the eyes of the person reading it using a one-way mirror. This allows newscasters and speech-makers to gaze directly into the camera while talking, making it look as though they are speaking extemporaneously. A person using cue cards usually glances off to the side when speaking, making his or her speech seem less natural.

Some entertainers, such as stand-up comedians, prefer to use cue cards with just a few key words printed on them as reminders. This makes their material sound less “read” and allows them to play to the audience and not the camera. Former Tonight Show host Johnny Carson eschewed the typical human-holding-the-cue-card method and instead had them mounted on a line of easels. Insiders joked that you could tell how far along Carson was in his monologue by whether he was facing stage left or stage right.