What's the difference about these two accounts?

[Noneofyour Business]

Ok so I was on my sisters Facebook account ( 10th grade ) and I was creepin on peoples accounts that she wasn't friends with lol. It let me view their photos info and even some of their walls. Then I got onto my grandmothers account and some of the same people I was lookin at it wouldn't let me view very much/ anything. (she wasn't friends with them either) Why is this?

[scrawnyeggnog623]

we'll have no idea
it's up to your self buddy

[Nicholas Perla]

you have to request a friendship for those people. Facebook won't let you view any personal information unless the person you are trying to accepts the request you sent them. To do this, you go to the persons wall, and right next to the persons name is a button that says add as friend. It's pretty much self-explanatory from there on.
Just be sure you know them, and they know you because they can reject a request.