Warning: This is not a guide on how to guess passwords. It's actually about how to avoid getting your passwords guessed. Don't do that. Don't do that at all.
Step 1: Choose a password that's not "qwerty". Seriously, who still uses that?
Step 2: Don't use a password that's a variation of your cat's name or your favorite food.
Step 3: Advanced Password Guessing Techniques (for the really, really desperate)And for the love of all things good and holy, don't share your password with your coworkers. Unless you want them to guess it for you.