How to receive Google Hangouts messages with the Messages app for Mac Note: If you have two-step verification enabled for your Google account, keep in mind you'll need to generate a password specifically for your Mac if you haven't already. If you don't, you'll receive errors that your login information is not correct. Click on the menu in the upper left hand corner of your Mac. Select System Preferences. Once in System Preferences, click on Internet Accounts. Add your Google account if it isn't already added. Once added, turn On the option for Messages.