Manage your shared Play activity
All reviews are public. If you don't want a review you have written to be shared, you can delete it. To delete or edit reviews you've written, go to the details page of the item you reviewed, under "Reviews," select Edit.
All +1's are public. If you don't want a +1 you have made to be shared, you can remove it. To delete your +1, visit the details page of an item and click the +1 button to remove it.
Note: You can manage your Google+ sign-in settings using your mobile device or computer.