Change user account in google hangouts samsung s3 mini
You can add a new Google account from the main Settings app on the phone. On Samsung phones, choose the Accounts tab, then Add account and follow the steps as they come up. Once you've done this, the Hangouts app will show a spinner (drop-down box) to choose which account to use.

You might also wish to check the sync settings from the account settings. By default, when you add a new account it will also sync contacts, gmail, calendar items, &amp;c. to the phone. If that's not what you want, you can turn off those items from the sync settings.