no no
No, you can't.
you can't.
Do you know how to change the pic on the profile?
if you are a friend you can look at their profile. if you are a fan... i dont know
No, they'll never know until they try to access your profile.
They don't actually tell you but you can look on your friend's list and check it their still there.. or visit their profile.. :)
None, unless your friend logs in. But you should have a secret password they don't know.
Facebook doesn't have that function.
well, i dont know but if you are worried then mke it private only your friend cansee it
Well you can not join there game but if you go to their profile you can see what they are playing
When a Facebook friend is online, there will be an icon displayed by their name in the friend list. This also indicates that instant messaging can take place.
no but i know a way if your friend is online click on their profile and click the question mark