Facebook - any way people can see that I've looked at their page?

[Mildredop]

So, the other day, a very old friend's ex-girlfriend (from about 12yrs ago) popped into my head. I did a bit of FB stalking and had a good look at the page to see what they were up to.

Yesterday, I had a friend request from her. We have no friends in common.

So, now we're friends, I was looking through her non-public photos and saw the attached. I thought this wasn't possible?

 

[larrylaffer]

It's not possible. Those ads are scams.

Here's a proper explanation.