Reading The Customer's Body Language

http://www.marketingdonut.co.uk/marketing/sales/sales-presentations/q-a-understanding-body-language-to-make-more-sales
https://custom-writing.org/outer/img/infographic/bodylanguage.png
http://www.2knowmyself.com/Body_language_sales/reading_body_languages_in_sales
http://www.selfgrowth.com/articles/kyle.html
http://www.ehow.com/how_7251395_read-body-language-customers.html