I would suggest you stay away from describing your business practices as "manipulation", though. Almost all connotations of that word in psychology, law, and business imply deceit.

It sounds like you are decorating the showroom to boost sales... I hope it works out well for you. I was thown by the initial desciption that sure didnt sound like faces and buttons: "I'm streaming realtime events and then running statistical models on the datastream in order to manipulate user behavior."