Weaver: I think it would be creepy, and I see where you're coming from. Human beings, like all animals, have pretty well-honed "creepy-detectors". That uneasy feeling you get that gets your heart beating and makes you want to run and hide even though there's nothing overtly wrong has probably saved many lives.
But if this is for a story, you need to give a specific example. Are we talking vaguely supernatural, like a face in the woods, or totally mundane, like going to a restaurant where the patrons are all just a bit too formal/casual/quiet/loud for it to feel normal? Because depending on the genre, both could have some pretty scary implications.
"War doesn't prove who's right, only who's left."
"Every saint has a past, every sinner has a future."