To add onto kimchibokkeumbap's (yum haha) answer..
As you know, there are *very generally* two types of speech levels in Korean: (I know there are technically more but just speaking very generally.) casual, 반말, and polite, 존댓말.
Casually, you = 너 (neo) and me = 나 (na).
When you're being polite, me = 저 (jeo) and you wouldn't really say 'you' at anybody when you're being polite. It's more common to use their name and some sort of suffix or a title i.e. ajusshi and so on.