What are the best features in Facebook

Have you ever wondered what all you can do with Facebook except scrolling through your time, using chat, groups, and Pages? Know from our experts the hidden gems on Facebook.

We know only few features from Facebook social platform. In fact, FB has many features which we are unaware of except group, chat, calls and friend etc.

I would like to know from the expert that what are the unknown features and best features in Facebook that we can use it effectively.