Over the past year, the Elder Scrolls Online has included a few personalities that effect your characters idling fidgets, emotes, walk, and / or all of the above. For the most part, they have been an interesting addition to the game. However, I think the thief personality could have been quite a bit better given its crown price.
ZOS created a forum to discuss players thoughts on personalities, including what new personalities they would like to see. Some of the suggestions are quite intriguing like the Bard or Jester.