"Maybe it's tingly because its presence on the mortal plane isn't as stable as a mortal's is. Or it could be its spiritual energy vibrating."

Atom's eyes wander upward as he daydreams for a moment about what it's like to touch a tingly spirit. "Whatever the answer is, it's really cool that you were able to touch it- and ride it! Did it let you do it, or did you get bucked off? I would expect something like a bear to get annoyed."