I was out for tea with a friend of mine. An acquaintance approached us clearly both manic and psychotic. I had her sit with us and I gently encouraged her to call her psychiatrist. I told her if she needed a ride I would take her where he wanted her to go. Mania is unmistakable and dangerous. You cannot miss it. It's like a bright orange neon sign that flashes MANIC. Hypomania, far less noticeable. People are generally happy, a bit talkative, friendlier than usual but very productive and coherent. Where I miss is depression. It's easier to hide. It also can be the signal of many things, not just bipolar disorder.