'du' und 'dir' means 'you' but it depends on the verb and case which one will be used.
Wie geht es dir response. It is used in formal (ihnen) and informal (dir) situations, you can use it to start a conversation with whoever you. In the expression wie geht es (or wie geht’s ), the verb gehen is used in an impersonal way. If you are answering the question, you should usually use “mir”.
Germans expect a reply because for the german speaker, asking “wie geht es ihnen?” isn’t the same as a casual hello but rather is a. “wie geht’s” is actually the short form of “wie geht es” (how’s it going) or “wie geht es dir/ihnen ” (how are you doing). Maybe you misunderstood the first reply.
The verb 'gehen' is 'to be going; Another option is to give more detail about how you’re doing by. To me it seems like wie geht es du/dir is more like what's up but i cant' tell if wie geht es ihnen is specifically asking how are you physically (cold, sick, hot, etc.) or just a more formal.
You need to know which. (to your advantage) so let's analyse the declarative sentence of ›wie geht es dir?‹: This means is does not agree with the alleged.
C) mir geht es so lala. If you are talking to a coworker, person of authority, or stranger, you use the word “ihnen” in the question “wie geht es ihnen?”. Mir geht es nicht gut.
One option is to simply say ” gut, danke ” ( good, thank you ). B) mir geht es prima. In german, however, a reply is customary.