Well,bookworm from stalybridge nails it really,take with a pinch of salt.I too bought it because of neil strauss recommendations,if you have any interest in people,and psychology,personally i would spend my money else where.
If you want to read it on the basis thats its something to play with,and see how people react?then fair goes,in psychological terms its a representational tool,a fairly good ice breaker and conversation starter.
And something very light...if you want to use it to chat someone up?you'll probably end looking more of analyst than someone they want leave with...