Open the Gmail App – App Drawer icon
- Tap Settings
- Go to Account > Add account, and then select Other or you can select Google.
- Add your Account screen, so enter your Gmail address and tap Next.
- Then, Enter you Gmail password and Tap next.
- Then Google will check your given information whether it is true or not.
- Select Agree on the Terms of service page.
Once finished, you will be back at Accounts in Settings. If you want to see the accounts that you have added, just tap Google.