Promotion of the exhibition ‘Uhh!…’Trás’ (Behind) the game of hide and seek Masks have always had a theatrical function, representing defining character traits of allegorical characters or social types. – Guided tour of the exhibition. Decoration of plaster masks to allegorically represent the 7 Deadly Sins and the 7 Virtues that oppose them. Target audience: 3rd Cycle and Secondary School.