Expose... To your own taste
You only have to please yourself…
Once you know what the histogram is telling you, you can adjust the exposure to get the look you want. For instance, some subjects look moodier when they’re underexposed, while others take on a light and airy feel when the exposures are on the bright side. If you shoot raw, you can experiment when you process a file.
GO DARK The original image had distractions in the background, but underexposing the shot has masked them.