
That's right. Finally, you can get Chat Bubbles/Bubble Words in Minecraft. Anytime you talk, you will see a Chat Bubble follow you around where you go and other players can see it!
Nothing at all. Just plug and play (drag and drop).
The only option that you can change is the timeout that Bubble Words eventually disappear.
These chat bubbles are spawning a invisible/invincible Horse and Wither Skull that you can not see. Due to Minecraft's weird rendering, they have to be exactly 57 blocks above you. So every tick, your player location is being stored and the horse and wither skull is being teleported. The wither skull so that the horse can stay in it's place, also to provide you with a name.
Unfortunately that's Minecraft for you, and there's nothing I can do about that. Packets? Maybe. But packets tend to break very easily and quickly.