Type Daily.
A dusty keyboard will get you nowhere. The only way to improve your typing speed is to practice. Practicing not only helps to learn the keyboard layout, but also builds muscle memory, making it easier to know exactly where the right keys are without looking. Typing accuracy, one of the keys to typing fast, can be improved via typing tutorials, typing out chapters from books for practice or playing typing games.
Many people love to practice using
typrX, an online typing competition. typrX keeps track of your typing speed, while allowing you to compete against other people, either around the world in public races or with friends in private races. Destroying the competition can be satisfying, and provides a fun incentive to practice.