A language expert says using a full stop can look rude. The expert said younger people who use messaging apps will send a new message instead of using a full stop. She said: "If you're a young person–the default way to break up your thoughts is to send each thought as a new message."

The full stop is 2,300 years old. Teachers use red ink if a student forgets to use it. Technology is changing how we write. People now write 'LOL' instead of 'laugh out loud,' or the abbreviation 'fyi' rather than 'for your information'. This can save time. The expert said a full stop can make the writer look a little angry.