I want you to look deep into her eyes

It is raining. It has been raining for 3 days (and 3 nights). This is not to complain, it is merely a statement to explain. Because it is raining, I have been exercising inside.

My roommate has this bizarre machine, called a Gazelle, which functions somewhat like an Elliptical, except not. I was attempting to exercise on said machine yesterday morning and was bored out of my mind, so I turned on While You Were Sleeping, and it happened to be at the scene where Saul (the godfather) confronts Peter (the coma guy) for being a putz.

Saul tells Peter, "Lucy is going to come here today, and I want you to do yourself a favor. I want you to look deep into her eyes with the heart of a man who has just been give a second chance at life."

In the next scene, Lucy comes in and Peter (because he is a putz) stares at her, and Lucy looks away because she is clearly uncomfortable. This got me thinking again about staring. So I was in class the other day, and one of my students was staring at me the entire time! For 50 minutes! Now, I am a teacher, I do expect to be looked at every once in a while. But there is a big difference between looking and staring. And ever since I have been wondering what it is. So why is staring so creepy?