Aura

I can see auras too, though I need to focus to do so. I've found that aura colors can have a variety of meanings, mine looks like a crystal lattice of blue and green. Silver and white could mean any number of things, but none of them are bad. The only aura color to avoid is black, usually indicating a psi-vampire or something similar. I've found colors to indicate the basics of someone's personality, while the "texture" or shade can show their emotional state.