Christians also take part in non-liturgical worship, in which there does not have to be a set order or ritual. In Nonconformist churches, such as Methodist, Baptist and United Reformed churches, those planning the service may choose an order to suit a theme. Nonconformist churches place an emphasis on the word of God in the Bible, and although many churches may celebrate Holy Communion regularly, perhaps once or twice a month, the service is usually focused on Bible readings and a sermon based on the readings. Informal worship may depend on people's spontaneous prayers or sharing of thoughts. Quaker worship is mainly silent, and people speak when they feel God's spirit moving them to offer thoughts, prayers or a reading from the Bible. Community or house churches meet to eat together and share their faith to recreate what they believe to be the worship of the Early Church. Some informal worship, like that of the Pentecostal Church, is 'charismatic' (that is, 'led by the Spirit') and may involve dancing, clapping, calling out, and speaking in tongues. These worshippers feel it is easier to experience God's Holy Spirit in informal worship.