FACEBOOK has three hidden tricks you've probably never heard about

Despite a slight decline in popularity in recent years, Facebook is still one of the world’s most popular social networks

Inside this hidden folder will be messages from people you're not friends with on the social networking site and are therefore logged as "message requests"

For some reason, Facebook doesn’t notify you when you receive these types of messages. Nor does it place them into your default inbox.

It’s quite surprising for a website that’s in slow decline to launch a feature that shows you how much time you’re wasting on it

Within the Facebook messenger app, there are certain messages you can send which will unlock hidden games

Send the soccer ball emoji to a mate and then tapping on it, for example, will launch a keepy-uppy game before your very eyes

This will launch Facebook's hidden chess game, which you can play against the person you’re chatting with