The term "mouth off" is commonly used in English to describe the act of complaining loudly and rudely about something or someone, using dismissive, derogatory, and polemical language. It is often associated with opinionated rants that might not be taken as based in fact, and it conveys a sense of untruthfulness. "Mouth" symbolizes the way words, rumours, opinions, and ideas spread, even if they are false. Similarly, we can counter misinformation and mistrusts using our words. With the emergence of social networks as a means of socializing and obtaining information, the proliferation of false news and information has escalated. Across Europe, 90% of young people rely on the internet for news, exposing them to misinformation and misdirection, potentially compromising democratic processes. In response, youth workers from Ireland and Spain collaborated to address the challenge of helping young people distinguish between facts, misinformation, and lies. With this project, young people in FOCO Europa (Spain) and Crooked House (Ireland) proposed to use theatre methods to address what they saw as major concerns regarding social media, decontextualised content, and misdirection of information. They presented their concerns locally in documentary-style theatre performances to local politicians and policymakers. The project adopted the principles of inoculation, aiming to expose people to examples of misinformation so they could better recognize and question it. The 'Mouth Off' project sought to emphasize to local policymakers the importance of engaging with prominent social media and tech companies in Europe, many of which have headquarters in Dublin, to combat the misuse of their platforms for anti-democratic purposes and fake news. The young participants aspired to convince politicians that comprehensive training in prudent, secure, and discerning social media use should be integrated into education, particularly in secondary schools. Through this project, the organizations aimed to demonstrate that theatre can serve as a tool in youth work for a proactive response to fake news and social media abuse. Overall objective: – To improve the ability to identify and combat misinformation and fake news online in groups of young people, and to share these learning outcomes with public representatives so that they can take the specific needs of young people into account when developing policies and programmes to combat fake news and misinformation. Specific objectives: - To train young people in detecting fake news and misinformation; - To develop short performances to "inoculate" local communities against misinformation and fake news; - To share the results and reflections of the young people with at least 10 political representatives and public administrations through political participation events.