As health and community services become more digital, older adults are often judged by uptake, confidence, or ability to use systems independently. This is a problem because it can miss how participation is actually negotiated through family help, language, place, trust, and everyday workaround. For older Chinese migrants in Auckland, these issues may be further shaped by migration history, community ties, culturally preferred ways of communicating, and different expectations of support. Current methods such as interviews or usability-focused approaches may not fully capture these lived and relational dimensions. This study introduces a culturally adapted co-design method developed for our fieldwork with older Chinese migrants. Building on earlier conceptual work on governance-oriented gamification, the method shifts away from behaviour change and toward low-pressure, scenario-based participation and collective sense-making. It uses a World Teahouse format adapted from World Café and tea-sharing traditions, combining storytelling, mapping, rotating table discussions, and prototype imagining to explore everyday participation, meaningful places, digital supports, and future ageing concerns. The presentation will discuss the problem this method addresses, the design process, key principles of cultural adaptation, and how the approach supported more inclusive fieldwork and service design.