You don’t see them. You are on the ice and so are they. They hunker down and purposefully cover their nose with their paw when you look in their direction. When you look away, they creep closer until your head starts to turn again. They don’t want you don’t see the little black spot getting closer and closer. If you are lucky and looking around while you are out on the ice, you will see a little black spot disappear. If you do. GET OUT NOW. If the spot was big enough to notice, the bear is probably close enough to charge. I hope your snow machines are close and ready to go.