* a blue bar at the top of the page that informs you about the new terms of service
* a message that introduces the new app launcher
* a link that asks you to make Google your homepage (IE-only)
* a cookie disclaimer required in the European Union (EU-only).
Click "Got it", "x" and "OK" and you'll dismiss 3 of the messages. You'll no longer see them unless you clear your Google cookies.
What happens if you ignore the messages?