Singing was sporadic and in "a cappella" or occasionally there would be singing in tongues. There were periods of extended silence. Attenders were occasionally slain in the Spirit. Visitors gave their testimony, and members read aloud testimonies that were sent to the mission by mail. There was prayer for the gift of tongues. There was prayer in tongues for the sick, for missionaries, and whatever requests were given by attenders or mailed in. There was spontaneous preaching and altar calls for salvation, sanctification and baptism of the Holy Spirit. Lawrence Catley, whose family attended the revival, said that in most services preaching consisted of Seymour opening a Bible and worshippers coming forward to preach or testify as they were led by the Holy Spirit. Many people would continually shout throughout the meetings. The members of the mission never took an offering, but there was a receptacle near the door for anyone who wanted to support the revival. The core membership of the Azusa Street Mission was never many more than 50–60 individuals, with hundreds if not thousands of people visiting or staying temporarily over the years.