1. Facebook is a social networking site.

2.How many hours a week and more than three hours.

3.How many groups five to ten groups.

4.People you don't know just to have more friends and yes , all the time.

5.No, i never update it.

6.Yes it is your homepage to facebook.

7.Meet a new person go home and look at their facebook page to sometimes.

8.More friends to more than 200.

9.Of course it does.

10..Yes, lots of friends.