I started to get into this about a year ago. Using it in everyday conversation takes a little bit of practice, but when you get good at it you can create rapport much faster. It's almost like a fast hypnosis. Read anything by John Grinder or Richard Bandler, they're basically the founding fathers of NLP.
[ame=http://www.amazon.com/Neuro-Linguistic-Programming-Structure-Subjective-Experience/dp/0916990079]Amazon.com: Neuro-Linguistic Programming: Volume I (The Study of the Structure of Subjective Experience) (9780916990077): Robert Dilts, Doug Davis: Books[/ame]
[ame=http://www.amazon.com/Frogs-into-Princes-Linguistic-Programming/dp/0911226192]Amazon.com: Frogs into Princes: Neuro Linguistic Programming (9780911226195): Richard Bandler, John Grinder, Steve Andreas: Books[/ame]