Two the most common mistakes which are made by beginners

Cześć! Jak się macie?

I really appreciate my students who are trying to say their first words or sentences in Polish. However, I have noticed that many of them make the same two mistakes.

MISTAKE 1

How can we say 'How are you?' in Polish:

1) Jak się masz? (How are you?)

2) Co słychać? (How are you?)

3) Co u ciebie? (How are you?)

4) Co tam? (What's up?)

5) Jak leci? (How it's going?).

Have a  look at the short dialogue:

A: Jak się masz? (How are you?)

B: Dobrze. A ty? (I'm fine. And you?)

A: Świetnie. (Great.)

So: "And you?"- "A ty?" 

But if we somebody starts the conversation with us using the question number 2 or 3 or 4 or 5, we cant say: A ty? We have to say: A u ciebie?

Have a look:

A: Co słychać?

B: Dobrze. A u ciebie?

A: Świetnie.

You have to pay attention which question you hear at the beginning of the conversation to know if you should say: A ty? or A u ciebie?

MISTAKE 2

Miłego dnia! means Have a nice day!

When I say it to my students, they usually answer: Ty też! That's not correct.

You can answer: Nawzajem! or Wzajemnie! Both of them mean sth like: The same for you.

A: Miłego dnia!

B: Nawzajem!

The same for example with: Miłego weekendu! (Have a nice weekend!), Smacznego! (Enjoy your meal!- if you are eating at the same time as well)