This is my first guide so please excuse any mistakes

Caitlyn has been a big favorite of mine since i bought her and her Officer skin. Not only is she sexy in it but she can solo anybody with her full build and amazing life steal.

I use ghost and teleport when playing her and only go back to purchase items when my teleport is up. Great when you wanna flash out and back in before they even realize you went back.
When buying her items, i always get black cleaver first because it gives me attack speed which can wipe out minion waves faster and get other champions down low enough to ulti before they back away to their turret.

When playing Caitlyn in a team fight, make sure to stay behind your team but close enough to get hits on enemy champions.
LEARN WHEN TO RUN BACK AND NOT BE CAUGHT. I cannot stress it enough, alot of people feed w/ Caitlyn when they don't learn to run away from the enemy.
At the start of the game feel free to run around w/ atleast 3 mana pots and 3 health pots. It will be great if you're being pushed and focused hard.
Always remember to harass while in lane also. If you have the runes listed you will do ALOT of damage to squishy champions at level 1. They won't know what hit them :P

Feel free to use this build, :)
Feed back would be greatly appreciated. :) Thanks.