(not my idea btw) You hum a song waiting for the killer to pick it up and come thinking there is a survivor. You just want revenge, tricking the killer into coming closer. Once you hear that someone is approaching you prepare. But seeing that it was Noah who was still alive, you simply plunged into the lake

He had already seen you, his expression was one of surprise and horror, it was obvious that he was surprised to see you like this, you quickly moved away when he approached.