I'd say good hearing. I've heard many times before, that when one sense is taken another is heightened. Before my fall back in 2007, I can say my hearing was just normal. Nothing out of the ordinary and nothing special about it. But years later of walking with crutches, I noticed my hearing is quiet unique. It started as taking note of how the crutch sounds when I walk, then with time I could tell if someone is walking towards me from behind and now I can even cross the road without having to look left or right. My sharp hearing makes me sense how far an approaching vehicle is and helps me walk even in the dark without needing to see the ground that I walk on.