YOU SAID:

He says to "be cool" but, I don't know how yet, wind in my hair

INTO JAPANESE

彼は「かっこいい」と言っていますが、まだわからない、髪に風

BACK INTO ENGLISH

He says "cool" but I do not know yet, wind on the hair

INTO JAPANESE

彼は「クール」と言っていますが、私はまだ知りません

BACK INTO ENGLISH

He says "cool" but I still do not know

INTO JAPANESE

彼は "かっこいい"と言っていますが、私はまだ知りません

BACK INTO ENGLISH

He says "cool" but I still do not know