Oh my favorite person now, hahahah I love doing this now I have the hang of it.
There are some stuff on youtube also.Try different ways.
After you see a color or maybe you see clear go to these websites and find out what the color means or take do the questions to find out if its the same color you saw. The answers will be below the questions.
http://www.seanachaidh.com/aura.html what they mean