Below are some of the steps provided for configuring OOB auditing feature in SharePoint 2010
First of all open the site from the browser and click on site actions menu. From the site action menu select the site settings option
After clicking in the site settings option SP will redirect you to the settings page.Select the site collection audit settings option from there.
You can view audit report by clicking on the audit report option from site settings page
Its done..! Very simple.!