Leather puppet (or wayang kulit in Javanese term) is a traditional performing art that combines various artistic elements, such as music and sound arts, dance, and role. It becomes a medium to release the saturation of the Javanese daily activities as plantation workers as well as the arena of friendship among Javanese migrants in Deli land (East Sumatra Onderneming). The study uses Martin and Rose’s (2003) appraisal covering language assessment and attitude mapping in the texts. From the analysis it is found that the sources of puppeteer’s attitude come from the storyline ofLempahan Gatot Kaca as “Senopati” (war knight), attitudes are greaterthan any other expressions, negative expressions on affect are higher than judgment and appreciation. The dalang’s negative attitudes are disclosed directly as forms of dissatisfaction and injustice in the society which are manifested by the wayang’s characters. Javanese philosophy of life and of positive attitude can be identified in the wayang discourse when the dalang exploites the narration about people, agencies, and objects. Having evaluated the forms of attitudes we argue that the wayang discourse is expressed implicitly and explicitly because language becomes Javanese ideological and philosophical identity consisting ofphilosophy ofpositive attitude, philosophy of forbearance, philosophy of truth, and philosophy of ethics.