Windows Phone 8.1 comes with a great Keyboard called “Word Flow” keyboard, which holds world record in fastest typing speed. This has been possible by combining Windows Phone’s already capable keyboard and new swype-like input method.
Still there are some tips and settings which may make using this Keyboard faster and more enjoyable for you.
While writing if you tap and hold some of the keys you get to many new key inputs and that saves lots of time for you. Have a look at some of the examples below. You can find some more by yourself.
Go to Settings—-> Keyboard and tap on any keyboard. You will be presented with lots of setting options. There is also something called advanced settings tapping on which presents you with option of comma and switch back to letter after typing emoticon.