hey man
Start adding people to your facebook profile!!!

dude every one has started there. Everyone beens there where yoy have like no friends on fb, but it expands afte a while.
Better to start now then later
For the pictures, i would make sure that i have a nice profile picture that stands out. Remember display yourself in your profile picture, i find people who dont are normally insecure.
Add pictures from parties u go to, any sport pics(maybe of u) . Put a variety of pics up, make ur self interesting
Hope this helped man, get adding!!!!