According to the books everything is so clear and simple: the roles are well known, the contribution of each role to the project is clear, and the artefacts seem to show up by magic. Why is it so different in reality? Thanks to God if the Sponsor once heard about the project for which he pays. The User has no requirements. The SME knows nothing in the domain area - he works just the second day, and the PM is on vacation. And so on and so one, project after project. We cannot change it, but we can share how to work in these circumstances. Our presentation will tell you how the science of psychology helps any professional analyst to develop his approach and elicit trustful information in the world where, as known, everybody lies.