To create a twitter account:
1. Go to twitter website (https://www.twitter.com) or go directly to signup page (https://twitter.com/signup).
2. Now, you need to enter your full name, desired email address , and desired password.
3. Double check your email address, password, and username.
4. Click "Sign up".
5. Congratulations! Open your email and verify your twitter account.
For more details on how to sign up for twitter, just follow this : support.twitter.com