3.Touch the Username and Password fields and enter your information.
4.Tap Sign in. Your device then communicates with the Google servers to confirm your information.
Important: Some applications, such as Calendar, work only with the primary Google account (the first Google account set up with your device).
If you plan to use more than one Google Account with your device, be sure to sign into the one you want to use with such applications first.
When you sign in, your contacts, Gmail messages, Calendar events, and other information from these applications and services on the Web can be synchronized with your device. You will be prompted to sign in or to create a Google Account the first time you start an application that requires one, such as Gmail or Android Market.
