To truly experience Saint Peter's Church like a local, attend a mass or service. Join the local community in worship and witness the devotion and faith of the parishioners. Whether you are a religious person or not, participating in a religious service can provide a unique cultural experience and a deeper understanding of the local traditions and customs. Check the church's schedule for mass timings and plan your visit accordingly. Remember to dress modestly and respectfully, as a sign of reverence to the sacred space.