Ah Nothing... quite the character...
Nothing is an extremely shy fellow, most people are confused or aggravated by his silence. He is a Vreemdeling. Nothing hardly communicates but if or when he does one would have to be silently listening, perhaps even holding their breath to hear his tiny voice. Nothing usually takes odd notes on the different beings he sees while hiding in the shadows, but of course he doesn't say a word to them even if he's tempted to. Nothing never seems to sleep day or night and definitely prefers night over day. Nothing is a night elemental Vreemdeling, he controls the night and cares deeply for the moon as it calms him in many situations. It's like when one comes home from a day of work and drinks tea, only he would just stare at the moon. I would describe his back story but... that'd be giving away too much. I'll add that he's extremely shy BUT he's also really nice, for example, if someone is feeling down and or crying quietly by themselves, he may just approach them and attempt to make them feel better. But if your crying like a manic he'll just watch from afar.
Oh and, just as a random fact, Nothing also has a strange interest in hands.
Nothing can wait in the dark for centuries for an opportunity to attack, None will likely attempt to warn who Nothing targets but since people tend to go for the one who they feel sympathy for, Nothing usually gets what he wants in the end.