I heard about some people who taught their members how to speak in tongues. They put some gibberish together, asked them to pronounce it. Then they told them they were baptized in the Spirit. That is hogwash.
The early church did not have tongues instructor. I can't imagine sitting under a tutor teaching me how to speak in other tongues. You can be sure the tongues will not be inspired but framed from human imagination.
How did the early church know what to say when the Spirit came upon them? By the Spirit.
Acts 2:4 says, "And they were all filled with the Holy Ghost, and began to speak with other tongues, AS THE SPIRIT GAVE THEM UTTERANCE"( KJV).
Who gave those in the upper room the new language they spoke? The Holy Spirit. It was not Peter or Andrew. They did not employ a tutor to teach them what to say. They simply relied on the Spirit to do that. Glory!
Now, you may ask, If it is the Spirit that gives believers what to say, how do I know when the Spirit is giving me inspired utterance to speak in tongues as I seek to be baptized with the Spirit? This is very simple.
As you pray for the baptism of the Spirit, utterances will be given or dropped into your spirit, it'll come as strange words. At that point, all you need do is to speak out what the Spirit is depositing into your spirit. That is all.
The baptism with the Spirit may occur while meditating, walking, cooking, in the bathroom. It is not only in prayers that you can have this divine experience. It can happen at anytime the Spirit desires. Yours is to stay sensitive and expectant for utterances to be given. As soon as it is given, just speak it out.
You don't need anyone to lay hands on you before it happens. While in your room waiting on God, it can happen. Also, the baptism of the Spirit doesn't have to be dramatic. He came like a mighty rushing wind on the day of pentecost but as a gentle Spirit in the house of Cornelius. No drama or special effect, yet him and his household were baptized with the evidence of speaking in tongues.
The experience (baptism with the Spirit evidenced by speaking in other tongues) is more important than the manner in which it happens
If you are yet to be baptized with the Spirit, you need this experience. You never know how wonderful it is to have a prayer language through which you can express burdens that words cannot utter. You may think you are mighty in prayers now but when you get baptized with the Spirit, you'll be mightier in prayer.