Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Think you understand Americans? This may surprise you!

This is a thoroughly enjoyable and insightful read for anyone wanting to understand how to interact with Americans. Whether you are engaged in business, friendship or politics this is a must read book and an investment to enhance any future relationships. It combines a sound understanding of the psyche and mores with fascinating information and practical advice - all dispensed in an accessible style with bite sized chunks enlightened by touches of humour. Written by two Americans with global credentials it will probably be as revelatory to their countrymen as it was for me.