if you look at your friend's profile page, she/he will never know about it.
this is also true for other friend's pages.
facebook has strict privacy policies about this.
there are some "see who visited your page" applications on facebook. they are all FAKE and they are created only for advertisement purposes and attract users..
don't worry. they will never know that you visited their pages.
yes, it is true for 4th person's page too.
only facebook knows when you open someone's page.
I have a question on something entirely different. Not facebook. it is about the xbox 360 camera. Am I in the right place asking this question...
can you ask it on homepage? and select "electronics" as category?