I was reared in a church that taught "speaking in tongues" and never believed it, although I believe it was necessary in Acts, etc. I saw and heard people doing it but I am sure it was fake. They used their "tongues" as a toy and a matter of pride.
One person, while she says she is no longer a believer, says that she can still "speak in tongues," having fun with it. I don't say anything because I told her I would not argue with her.
To keep it honest, I did have one incident a while before being kicked out of that church, but when I remember, I want to go wash my mouth out. It is a horrible memory.