Conference presented by Dr Carine Lallemand (University of Luxembourg) at the World Interaction Design Day on Sept 2018. Event organised by IXDA Lausanne. The limited resources in design projects often encourage the use of fast, low-cost, quick & dirty UX methods. However, guerrilla UX can also be "quick" without being "dirty". It can be an inspiring and valid alternative to traditional UX design methods. Beyond the famous Starbucks user tests, this conference will introduce you to several guerrilla alternatives to interviews, questionnaires, observations, as well as ideation, storyboarding or prototyping. A great dose of inspiration to give everyone the power to apply UX techniques and to focus on users even it seems unaffordable!