How can you say in Korean "You're really cute"?

Informal

雱?鞝曤 攴€鞐泴.
Neo Jeongmal kwiyeoweo.

雱?歆勳 攴€鞐诫嫟.
Neo jinjja kwiyeoptta

雱?鞏挫氅?鞚措爣瓴?攴€鞐诫媹?
Neo ojjeomyon iroke kwiyopni?

雱?鞏缄荡鞚?鞕?鞚措爣瓴?攴€鞐疥矊 靸濌布鞚勱箤?
Ni eolguri we iroke kwiyopge seng gyotsulkka?


Formal

雼轨嫚鞚€ 鞝曤搿?攴€鞐届姷雼堧嫟.
Tangshinun cheongmallo kwiyopseumnida.

雼轨嫚鞚€ 雱堧 攴€鞐泴鞖?
Tangshinun neomu kwiyowoyo.

鞚?靹胳儊鞐愳劀 雼轨嫚氤措嫟 攴€鞐毚 靷瀸鞚€ 鞐嗢潉 瓴侂媹雼?
I sesangeseo tangshinboda kwiyeoun sarameun eopsul keomnida.

雱?歆勳 攴€鞐诫嫟
nu -you
jinjja -really
gui yep dda - cute

PS: Someone who says I am from Korea, that one never be north korean. It is simple

There are many ways to say it, depending on your relationship with the person. But, here's one way:

(person's name)電? 雱堧 攴€鞐泴鞖?
(person's name) nun nuhmoo kweeyuhwuhyo.

Hope this helps.

edit
As i said before, there are many ways to say this correctly. The problem with korean is that there are many sounds that aren't in English. One person wrote "you" (雱? as "nu" the other as "neo". When you say it, it should sound like "nuh".

SO, one tip: if you don't know korean and you're going to use any of the other people's suggestions, make sure you say the "eo" sound like "uh" (the sound you make when you don't know what to say).

funny. i dont like it when people say "im from korea" last i checked there were 2 koreas north and south and they are very very different.