YOU SAID:
She was looking kind of
INTO JAPANESE
彼女はある種の表情をしていた
BACK INTO ENGLISH
she had a certain look on her face
INTO JAPANESE
彼女はある表情を浮かべていた
BACK INTO ENGLISH
she had a certain expression on her face
INTO JAPANESE
彼女は顔にある表情を浮かべていた
BACK INTO ENGLISH
she had a certain expression on her face
That didn't even make that much sense in English.