Hmm, perhaps if I lead others may follow more...
1) Can you "read auras"?
2) What can you usually sense?
3) How does that work for you, or how would you explain this to others?
4) How did you learn this?
5) Are there things that you do to improve this?
6) Any other thoughts or things you want to share?
1) To an extent. I'm sure there are always deeper levels of things, but yes to an extent.
2) Physical activity levels, emotional states, a variety of things. I think I mostly sense things in what I would call the chi and emotional bodies, though if people have a lot going on mentally I can sense that too but only in some general non-specific way.
3) Well, fore the most part I don't see colors, but instead feel vibrations and flows and can interpret those. I can generally correlate those vibrations and flows to "traditional aura colors". I can sense the way chi/prana both vibrates and flows, and both of those things have meanings. Through those I can sense subtle bodies, and to a small extent chakras. Physically active people tend to have a well-moving covering-plenty-of-distance chi that extends perpendicularly out from the body more than an average persons. It also flows parallel to the body quicker and stronger and more cohesively than an avg persons. Some people have very "biog hearts" if you will, and they seem calmer and more open and more listening. They react and respond to you. I can feel that in terms of what is open and active in their systems. Really cerebral people often have what feel like walls where emotional things are kept out, and what little emotional subtle activity is going on is slow, dense, and probably poorly interpreted. When people have special stuff going on, I can feel its vibrational motion and its flow, and I can sense if being given off by them and put into their environment. Most of that is kinda general, but hopefully its a useful orienting kinda general.
4) I trained in a number of things [martial arts, yogic postures, breathing practices, meditation] at the same time. Whatever things, or combination of things, I guess.
5) Yes, but usually indirectly.
6) Lots probably if I could think of them right now. For the moment I'm just trying to keep the ball rolling for this thread.
Overall, I largely sense chi/prana, and mostly in the lower two subtle bodies [chi body, emotional body]. There are plenty of things to observe there, and I keep finding deeper layers of things to sense when my awareness increases. I generally don't see colors per se. Sometimes I can sense lots of prana going into or coming out of a chakra, but usually can't sense the chakra itself [though maybe that's splitting hairs]. I can feel a number of layers and boundaries in auras, and also usually sense the size of different parts within the auric field.
People's beings exist on multiple levels of existence, different aura layers seem to mostly be that part of a person's being on that level of existence. For example, emotional/astral body for the astral/spirit-world level of existence.
Ok, so now that I've blabbed here for a bit, anyone else care to chime in with their details?