I didnt know Baptist's did that....... but most classical Pentecostals believe that the baptism in the Holy Spirit is always accompanied initially by the outward evidence of speaking in tongues. Both Pentecostals and Charismatics believe that the ability to speak in tongues, and sometimes the utterance itself, is a supernatural gift from God. I use to go to a Church of God and I heard it ALL the time. Some people I have talked to say it freaks them out, but to me it was kinda normal.....odd maybe, but I got use to it. Had to look some of that up lol