I'm working on a website that only accepts Facebook on their sign. I want to tell my users that we won't post anything on their name or like something that they don't, it's just the sign in proccess. Bellow the sign in button we have a "No information will be published", since it's a online coaching website. But I want something even more reliable to our visitors.
I've found many ideas on web, but most of them tell about not sharing e-mail information. Do you have an idea to help me elaborate this privacy statement?