My in-game name is Peridot. Feel free to use my name, HURRR's name above, or preferably the name of an actual friend you know playing the game when you start.
Just make sure you use SOMEONE'S name - I think you only get one shot at the very beginning to enter a name, or else those free Carats (in-game premium currency) are lost forever.
I'm mostly bumping this up to give a little more visibility to Hello Hero! - it's a cool little game with a graphic style akin to Dragon Quest VIII, and you have a bit more control over the action than your usual "tap advance and wait for the game to finish playing itself" card-collecting iOS title.