Many of Googles products involve interacting with other users.
press Contact info saved from interactions in the People & sharing tab of your Google Account.
Note: This setting does not apply to Gmail, only to other Google services.
hit the slider to the Off position to disable automatic contact saving.
This link will take you to the right page to kill the feature in Gmail.
Once youve done so, click Save Changes at the bottom of the page to apply the setting.
