A recent survey by msn.co.uk has shown that newer technologies including text-messages and instant-messenger services are changing the way we speak.
It found that far less people begin a text with “Hello” and instead use more informal greetings like “Hey” or “Yo!”. They also found that most people refer to a friend as “Mate” whenever they texted. People are also beginning to stop saying, “Goodbye” and are now either saying, “laters” or “in a while”.
More info and source – sky.com