There are many ways to make more friends on Facebook. First, you need to search for as many friends as you can remember their names and add them manually. You could also follow the Facebook friend suggestions that pop up from time to time. Another way is to search your friends' list to see if you know someone who isn't on your friends list. There's a high chance you will know one or two persons from your friends' list. You can also join different Facebook groups and make friends with new people.