Version 7.21 of the Google for Android application will be officially released soon. You can try new features now by signing up to become a beta tester. Just go to Google Play Store, click on the menu in the upper left corner, select My apps & games (My apps and games). Scroll down to find Google and click on the list. When the list appears, scroll down to the bottom and you'll see a prompt asking if you want to join the beta program.
With this feature you can easily share your phone screen right in Google applications. If you don't want to join the beta program yet, you can use the usual Android screen capture to take a screenshot of your phone.
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