In 1980, Professor Scott E. Fahlman suggested “:-)” to use punctuation for ironic statements.
It represents a facial expression using characters a colon, hyphen and bracket to express a person's happiness with a time-saving method. The two-character version “:)” which omits the nose is also very popular.
Nowadays, thousands of symbols are used including 3D versions to express feelings easily.
What CAN NOT we say according to the text above?