Add friends

Hello can you add friends in this website? Or follow other people? How to do something like that, not just seeing everyone the same?

Nothing like that, no. You can however mute or ignore users on their profile pages.

You can invite friends. But you can’t follow people. You can like if you like something :)

As mentioned above by @lucaviness and @Jan_W, there is no direct way to send friend requests or follow people through discourse.