If you are male, you would say: "Oh, tu es trés mignon." If you are female, you would say: "Oh, tu es trés mignonne."
NOTE: This actually says "Oh, you're very cute." As far as I know, there is no particular word in French that means "cutie."
You can say "discutons, ma belle" in French to say "let's chat, cutie."
Vous me manquez trop cutie.
tu est bell
oh ton dieu - Oh your god oh mon dieu - Oh my god
Oh you, cutie.
Like this: Oh
The phrase "hi cutie" translates to "salut mignon" in French.
Oh, super
"Oh ok" in French can be said as "oh d'accord" or simply "oh, OK".
mignon
"Oh boy" in French can be translated as "oh la la" or "oh là là".
"Ohh my" can be translated to "Oh la la" in French.