Having Taste
The effort the person has made to surround themselves with things that they love, they really love, and find beautiful is so clear. The effect on the visitor should not be to replicate their exact sensibilities but for you to develop your own more deeply. Some may argue that I am pushing for consumption but taste is so obviously not only made up of objects. It comes from a reverence and curiosity for history, art, craftsmanship, literature, music, film! All that eventually filters through to the objects one surrounds yourself with if you care enough. People with taste are noticeable savants—experts at what they love.
The asinine conversations about what people signal by way of what they read or how they dress is really the death of what is beautiful about taste. The importance placed on symbols as a shortcut into creating an identity without any real lived experience, in fact, sells everyone short.