Why is it that you can physically feel it when someone is staring at you? What would cause this? Any ideas?

What do you mean by physically feeling it? Do you get a warm feeling when people look at you? Or do you mean you can tell someone is looking at you because you can feel it? I'm not sure I get this feeling. Oh or do you mean that feeling when someone's looking at you when you aren't looking at them? Actually, I don't think that's true. I think, at least usually, it's because you can hear something, their breathing maybe, enough for you to realize that the room doesn't sound the same as it did before.

Hiya, Kelley!

This is kind of interesting Jusork, touched on it.

Thanks for the link, Tree! So it could be an electrical charge, a psychic power, or nothing at all. But I betcha most everyone has experienced it --- when you can actually "feel" someone looking at you, even though you have your back to them.

Here's an article debunking the "staring effect" by scientific testing (this ties in with Tree's link): Skeptical Inquirer.

I think that some angels were tweaking the results.