hmmm I was wondering how is 1 hidden I mean what xactly does that mean? this was proberly asked many times b4 but I would like 2 know anyway I was just wondering if u know feel free 2 say

It means people can't see you're on the site and where exactly you are (on the homepage, left side, bottom). When you are hidden, you can't see if others are on the site either.

when you edit your account, in the security section you can choose to be on lurk mode, which means people can't see when you're logged, unless you are in the chat room.