From the home screen, tap Settings.
Scroll to and tap Twitter.
Enter the User Name and Password for the Twitter account, and then tap Sign In.
If prompted, enter an Apple ID and password, and then tap OK.
Once the download is complete, the Twitter app will be installed on the first availble home screen.
If prompted to allow access to Twitter Accounts, tap OK.
The Twitter account is now added.
To create a new tweet, tap the Compose icon.
Enter the tweet in the text field.
To add a location to the Tweet, tap the Location icon.
If prompted to allow Twitter to use your location, tap OK.
The Tweet is now posted.