Living water at Sunday lunch

Sunday lunch brings the family together around the table. Amid conversations about daily life and memories from the past, your uncle Roberto brings up religion. He has always considered himself Catholic because of his family tradition, although he rarely attends church or reads the Bible. For him, keeping certain customs and being a good person are enough before God. Roberto highly values the family's religious history and associates faith primarily with the customs he learned in childhood. He shows no hostility when talking about God, but usually understands religion through family tradition and moral conduct. During lunch, the conversation opens up an opportunity for you to talk with him, using John 4 as the biblical reference for the simulation.