PC bravery is false bravery that comes from hiding behind a computer screen. It includes saying things online you would never say in person, threatening people you don't like, or making up lies to infuriate people (known as trolling).

On social media, the outspokenness and the cancel culture are heightened at the moment. Ill-conceived social media posts can trigger the downfall of a business or professional career.

The theory examines the ability of a communication medium to effectively and accurately convey social cues.

Research on nonverbal communication estimated that 93% of communication is nonverbal. It is generally accepted that body language and facial expression influence our perceptions of other people and how we respond to them.