Google has announced a new way to log in to your Google account from a public terminal without having to entering your password into the computer. You can use an Android phone smartphone and a QR code to log in. This method is similar to how Google sets up your smartphone for the two-step log-in process that was introduced in February 2011.
Using a smartphone, visit the website:
https://accounts.google.com/sesame and scan the QR code that is generated. From there the Google login prompt will appear on your phone and logging in will log you into a session on the desktop. If you are wondering how to find a QR code reader for your smartphone, you can use Google Goggles on the Android Market or part of the Google Search app on iOS.