Welcome to Engage Welcome to Engage, a central resource for Involvement in Health and Social Care in Northern Ireland. How to undertake Personal and Public Involvement (PPI) A range of resources to help Health and Social Care staff develop knowledge and skills in Personal and Public Involvement. Involvement in practice Case studies showing best practice. Get involved Check out what you need to know to get involved in Health and Social Care. PPI training Online and face-to-face training available.