Best ways are to check https://developers.facebook.com/policy/ https://developers.facebook.com/policy/ thoroughly - it's actually a very well written and concis

Best ways are to check https://developers.facebook.com/policy/ https://developers.facebook.com/policy/ thoroughly - it's actually a very well written and concise set of policies - or come see us at one of the hackathons we frequently run (such as the UPenn one mentioned in this thread).