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In casual digital conversations, punctuation can carry social meaning beyond grammar. Research has found that some readers perceive short text-message replies ending in a period as less sincere than identical replies without one. This doesn't mean periods are inherently rude—the interpretation depends heavily on context, age, and communication style.
Digital communication has created conventions that don't always exist in formal writing. A tiny dot can unexpectedly change the emotional tone of a message. Online, punctuation sometimes acts like body language.
© Computers in Human Behavior