Swivel heads
There's a lad at work who constantly looks around him all the time as he walks, turning his head all the way around and looking behind him.
There's a woman at my gym who is similar and stares at everybody. Not with a warm, welcoming happy smile, but with the most unsmiling, stony-faced scowl you could imagine.
I always wonder if it's just me. Perhaps I'm insecure or something, or maybe I have a huge orange spot in the middle of my face?
When I walk I mind my own business. I'm fairly observant of my surroundings, but I don't feel the need to glare at others.
Are you a swivel-headed individual?