This using a Microsoft Wedge Mobile keyboard (bluetooth) against a Nexus 7 2013, and not all things might work on all keyboards.
You know, one of those regular desktop kit that you use for your computer that comes with it’s own wireless USB transceiver.
As simple as it sounds, how you add a word to the personal dictionary.
Yes, I know that some people didn’t really like that Phone keyboard aka XT9 (T9) was removed from the 4.3 update for HTC One some months ago.
It actually doesn’t got “Bluetooth” in the name, but it’s kinda obvious by the Bluetooth symbol on the box.