Attractiveness is defined as having qualities that appeal to an audience.
An appealing communicator (often someone similar to the audience) is most persuasive on matters of subjective preference.
Other /More definition:
Attractiveness means having qualities that appeal to an audience. An appealing communicatoris most persuasive on matters of subjective preference. It is the extent to which a leader is appealing to look at.
Lexicon of Psychology - Terms, Treatments, Biographies,