Seen very occasionally on SL, Leon wanders around in a casual stroll, observing the world of SL, usually giving a Tick icon to show his approval or appreciation of something he likes.
Usually alone and feeling ostracized for looking like a griefer, Leon tends to prefer empty scenic areas. His favourite areas are usually dark with neon colours as that is about his speed.
Leon cannot talk and his moving liquid-display shows different coloured icons to show what he is feeling or a meaning he is trying to convey. His natural form of communication was either assumed to be random or plain ignored so Leon found a pip-boy like wrist-typewriter, having what he writes be read out loud by it. He generally prefers his own native method of communication but has been known to use the typewriter if it's something urgent or important enough that he refuses to chance someone misunderstanding.

Graphics are obviously from Secondlife and the pieces used belong to their respective creators/sellers.

There are more screens of Leon on my Twitter if interested.