Yes, the Spirit works in our lives. But do you pray to the Holy Spirit?
There is no warrant in the scriptures for prayers to anyone other than God the Father. "
Well, they also consider Pentecostals and Methodists to be damnable heretics in any case.
If by “do you pray to the Holy Spirit” you mean do I talk to Him, asking Him to be patient with me as I try to hear His guidance and thanking Him for reminding me of Christ’s atonement, then yes, I’d say you’d be correct in saying that I pray to the Holy Spirit.
Does that somehow bother you? Does it bother you that I would be grateful for and to the third Person of the Trinity? Afterall, we’re told that we’re sealed by the Holy Spirit unto the day of redemption, shouldn’t I be thankful to He which is sealing me?
As for worrying about what a bunch of Calvinists think of me, why should I? If I’m saved, then by their own beliefs they have no authority to challenge it or call me damned. If I’m not, according to them, there’s nothing I can do anyway so what is their concern to me? Sounds to me like sour grapes on their part, honestly.