You wrote;
"Hello I am Angelica. What are you?"
Therefore, just change
'너 뭐야?' to "<u>잘 지냈어요?</u>"
which means, "How are you?" or "How are you doing?"
I don't understand what your trying to ask ?
Answer:
Hey, so people use sign language to communicate with other people who cant hear or talk so they use there hands to differnt signals so they can communicate with their loved ones or others since there unable to speak.
Explanation:
