Spirit's appearance.
Appearing often as a handsome gentleman in a modern suit and tie and large rectangular eyeglasses. His entire appearance is filled with various colors, sectioned across his form. Due to his unusual appearance, it is difficult to estimate his age, but he seems roughly between 40 and 60 years old. He most often has a curious, bemused yet kind smile.
The world the Spirit came from.
A world very similar to our own.
Spirit's intentions.
He has been traveling as a spirit for a while, and after getting used to the notion he has been doing his best to leave a positive mark wherever he ends up. He's a naturally caring person, a somewhat fatherly figure, and has a special place in his heart for what he would consider lost youth, uncertain in their path in life.
Spirit's personality and mannerisms.
He has been traveling the spiritual pathways for many years, not entirely sure why or how, but he has learned to relish it and enjoy the various worlds he gets to experience, especially if he manages to leave any positive imprints. He has faith that it all means something and happens for a reason.
How does it communicate?
While not speaking any of the languages of Arda, Prickly Pear Living has a very minor form of empathic bond, and he can read emotional states as well as surface non-verbal thoughts. He is also a smart, inquisitive, and gentle person, and can communicate using hand gestures, pointing, and minor manipulation of objects.
As for his name. He can utter it, but it sounds like gibrish, So he sometimes draws it in the dust, or on foggy mirrors and the like. When he does, drawing the literal translation of his name, the thing he draws is a prickly pear with a smiling face, hence the moniker.