CNBC's US feed. The louder and shriller they get, and the more 'breaking news' blinks on your screen, the more hysterical and sensational they get to me is like a gigantic "oversold" or "overbought" (as appropriate) reading. Doing the inverse of what they say/advise is a good counter trade. ...of course I don't watch CNBC US much if any these days, so YMMV with this advice. Probably still works, though. lol Also, as for gold fear/greed --- when the "buy your gold" commercials on TV show up with abandon, and EVERYONE starts talking about getting long gold, it's a good time to go short or lighten your load.
Sure and the best one is easy to find. You will find it perched between your shoulders and sitting on top of your neck.. also facing forward which is a help as well.