How to tell if people are looking at your Facebook? :3?

[Thought Officer]

The friends list is..sort of indicative, I guess. But the thing is you have to be interacting with them just as much; facebook orders the list by who it thinks you're most likely to want to interact with, and it will show up that way (usually) no matter who's page your on, for instance, if you looked at your friends friend's list, you aren't seeing the same list they would see if they looked at their own page.

Stalking is facebook's main attraction, no way are they going to give it up by letting everyone know who stalks who.