No one paid any attention to me, so I scanned the room.
His eyes scanned the room, came to rest on her and didn't look away.
His eyes scanned the room, seeing them on every face.
He scanned the room for something to cover the woman.
He scanned the room to make sure she was alone.
She scanned the room, looking like a lost little girl.
He scanned the room, trying to find some evidence of what she was up to.
Your teacher just asked a question, and she's scanning the room for an answer.
He paid her no attention and scanned the room with his eyes.
She looked at him, men turned her head and scanned the room.