I was invited by a friend to their church's activity. He is a Christian, I am a Roman Catholic. It was not the first time for me to attend different religious activities of a different religion.
The experience, although short, was somewhat relaxing to the spirit. I just sat there for two hours, read Bible passages as their leader explain them one by one. The session was just an introduction to how they want their guests to know the truth. The leader emphasized that they are just instruments to expose the truth based on the Bible itself and nothing else.
After the session, everyone shared a humble dinner. I felt the warmth and sincerity of everyone in the room. If time permits again, I would like to listen and know more about their religion.