We would simply be aware of sensations that had no particular emotion significance or meaning. The astral body is not as tightly locked into time and space as is the physical body. Astral consciousness flows across time and space in a manner quite alien to the common laws of physical reality. The dream state and astral travel are two examples of this state of consciousness. The aura has one or two basic colors, one's own identity, but there are many other color areas about the aura that change with one's thoughts and moods.
Various traditions describe as many as nine layers to the aura.
This is a matter of doctrine and perception. The aura can extend as little as a few inches or as much as 100 feet. This depends on the evolution and vitality of the individual. Just as the physical body has many parts, so does the astral body. In the aura we will find the chakras, the kundalini and many other parts analagous to parts in the physical body.