How do you find people with very common names on the Facebook?

Lets say you are looking for somebody with a very common surname such as Smith, Brown, James etc. If you know their name , surname, and age. The Facebook would have at least 10 000 people listed under Smith. How would you find him? Are there short cuts?|||Get their email and type that email in the search. If that doesn't work,(sometimes it doesn't work) ask your friend what their profile picture looks like. Or you could look in your friend's friends. Maybe they are friends with the person you want to add as friend.|||Try to track possible mutual friends and explore from his/her name from the friends' friends list.|||Get their e-mail from them in person and try to search for them that way.. or search for their school as well