音おとがして、みんな一斉いっせいに後うしろを向むいた。

oto ga shite, minna issei ni ushiro o muita.

There was a noise and everyone turned round at once. casual

この部屋へやの窓まどは南みなみを向むいています。

kono heya no mado wa minami o muite imasu.

The windows of this room face south. neutral