To add multiple Google accounts to your phone or tablet, open the app drawer and launch the Settings app. Scroll down to the end of the Accounts section and tap the ‘+ Add account’ option. On the next screen, entitled ‘Add an account’, tap the ‘Google’ option.
On the following screen, entitled ‘Add a Google Account’, you will have the option to create a new Gmail account or log into an existing one. The latter option only requires the Gmail address and password for the account you wish to add. For creating a new account, add your name and the desired Gmail inbox name.