http://www.psychologistworld.com/bodylanguage/eyes.php
http://blog.thirdeyehealth.com/emotion-faces-faces-of-stress-no-bright-eyes-on-them/
http://ezinearticles.com/?Reading-Emotions-Through-Body-Language&id=490684
http://www.ehow.com/how_4607884_acting-tips-emotional-scenes.html
http://www.amateur-movie-making.com/acting-techniques.html
http://psychology.suite101.com/article.cfm/reading_body_language_watching_eyes
http://www.brighthub.com/education/languages/articles/18159.aspx
http://ardfilmjournal.wordpress.com/2008/11/26/basic-film-techniques-the-extreme-close-up/