This foot-in-the-door techniques and many other things have been covered beautifully in an ongoing course https://www.coursera.org/course/socialpsychology https

This foot-in-the-door techniques and many other things have been covered beautifully in an ongoing course https://www.coursera.org/course/socialpsychology https://www.coursera.org/course/socialpsychology. It is about to be over. I do recommend going through the videos. There is a lot to learn.