I did some search on aura, since i dont like criticizing before knowing a bit about something, and already found some bs about it, at least about what one website says about aura.
Aura - Learn to see your Aura image with your own eyes
"Why do we need to see auras ?
Colors and intensity of the aura, especially around and above the head have VERY special meanings. Watching someone's aura you can actually see the other person's thoughts before you hear them expressed verbally. If they do not agree with what this person is saying, you effectively see a lie every time. No one can lie in front of you undetected. We cannot fake the Aura. It shows our True Nature and intentions for everyone to see."
Someone who can see auras can detect when people are lying? Yea right.. try ♥♥♥♥♥♥♥♥♥ing me with something else. If it was really possible to detect lies by watching auras, police/secret agents would all be trained in seeing other's auras. I've never heard of such a training..
Also, the person who saw auras would be able to claim the 1 Million prize offered by J. Randi. The person could run through all the tests detecting lies flawlessly if its so easy as the text of the website above says.
Auras appear to be just another trick played on us by our eyes.