自分に酔ってるって英語でなんて言うの？

一人で気持ち良さそうに歌って、あの人自分に酔ってるね。
singing comfortably alone 一人で気持ちよさそうに歌って、
he is falling in love with himself.彼自身に恋してる。
he looks full of himself. 自分でいっぱい、
Singing comfortably alone he is falling in love with himself.
Singing comfortably alone he looks full of himself.