Apps: Download, install & open. The Google Play Store provides access to the latest music, apps, games, videos, and more to all Google account holders. A Google account must be set up first to complete this process. From the home screen, tap the Play Store icon. Tap "APPS". Tap the Search icon.
Enter the desired search item, and then tap the Search icon. Tap the desired result. For a free app, tap "INSTALL". Tap "ACCEPT". While the content is downloading, the Download icon will be displayed in the Notification bar.
To open the app, tap "OPEN". Uninstall an app. To uninstall an app, from the home screen, tap the Play Store icon. Tap the Menu icon. Tap "My apps".
Scroll to, then tap the desired app. Tap "UNINSTALL". Some preinstalled applications cannot be uninstalled from the device, but can be disabled; and some apps can neither be uninstalled, nor disabled. Tap "OK". ♪AT&T jingle♪.
Source : AT&T Customer Care