For buy and sell signals it is pretty straightforward. Just buy when the green (greed) is in control and sell when the fear (red) is in control
This was a special request so let me know if you want to see more scripts from me or if you want something custom!
In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.