Signing up for Twitter
There are two ways to sign up for Twitter: online (using a Web browser on your PC or laptop), or on a mobile device (such as a phone or tablet). Both ways are easy. I recommend registering online, using a desktop or laptop computer, because you are less likely to make a typing mistake (important for usernames and passwords).
If you already have a Twitter account, you can skip the registration steps. However, you may still be interested in the sections that describe the Twitter interface (including the icons) and customization options.
How to register online
Open up your Web browser, and type twitter.com into ...