According to Donald Smith, communication is an ethically _______ instrument

Which of the following is one of the four facial expression display techniques that help hide, foreground, and diminish the display of emotion?

a. intensifying b. concealing c. revealing d. amplifying

In order to hear him- or herself when the microphone is turned on, the operator must:

A. turn up the microphone B. mute the music C. turn on the “ON AIR” light D. wear headphones E. turn down the cue channel