Communication is defined as interaction between individuals that produces a response through verbal or non-verbal symbols. Political communication involves purposeful communication about politics between politicians, voters, and media. It can take the form of rhetoric, body language, protests, and other symbolic acts. Celebrities are described as "intimate strangers" who are physically distant but psychologically close to the public due to extensive media coverage of their personal lives. They become famous for their fame alone and are "created by the media." Politicians sometimes adopt celebrity traits to seem more relatable to voters in a process called "celebrification." Maintaining a positive self-image is important for politicians to communicate effectively and influence public opinion.