Did you know the emoticon is almost 30 years old? Twenty-nine years ago, Scott Fahlman, a computer scientist at Carnegie Mellon University, first proposed a colon, hyphen and bracket as a way of conveying emotional meaning via plain text.
Fast-forward and the simple smiley has evolved -- some might say mutated -- into various, and very varied, multi-colored, animated characters leering at you from your computer or phone screen.
To mark this anniversary, we've taken an abridged look at some interesting moments in the history of the emoticon. Have a look through the gallery and let us know in the comments your thoughts on this form of communication.