I'll say one thing about this hobby. People don't teach people how to listen. Everything get's wrapped up like a wine bottle label. The biz in general needs a master musician/recording engineer Yoda who isn't sponsored to evangelize and teach what sounds good. Too many GR_Research types that make it all sour. Not to detract from my original post.
Gene does a great job, but I can only guess from a measurement.
Hang out at some of the local audio stores, if they exist in your area. I don't know where you're located, but some cities have gatherings of people who listen to various equipment and systems. I understand not wanting to let strangers into your home, but it's a thought.
As far as teaching someone how to listen, it's hard to find the right words to describe sound, as it is for describing colors. One of the first things I tell people to do is close their eyes when they listen- it removes light and motion as a stimulus. Then, listen to each instrument, separately- listen for details that aren't obvious, like breath sounds when a horn or wind instrument is played, clicks from drum sticks, the sound 'attack' of any stringed instrument, the 'decay' of individual sounds, anything that sounds like reflected sound and other characteristics that would be audible in the music.
Here's an article from 2012- it's not a bad place to start and another thing I can recommend- learn the definitions of words used for listening, like decay, attack, timbre, etc.
Shopping for and auditioning speakers can be a daunting experience for newcomers to home theater, and even some veterans. There are a myriad of brands, styles, price points, and plenty of opinions.
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