I apologise for backtracking to this old post but I haven't been able to follow this thread for a while.
Galveston, you seem to think that speaking with “tongues” is a necessary gift for someone who is filled with the Holy Spirit but your previous quote
points out that the Spirit gives out different gifts to different people as he wills. Further in the passage we read
1 Cor 12:28-31
28And God hath set some in the church, first apostles, secondarily prophets, thirdly teachers, after that miracles, then gifts of healings, helps, governments, diversities of tongues.
29Are all apostles? are all prophets? are all teachers? are all workers of miracles?
30Have all the gifts of healing? do all speak with tongues? do all interpret?
31But covet earnestly the best gifts: and yet shew I unto you a more excellent way.
This clearly tells us that not all speak with tongues!
In fact in the next chapter St Paul tells us that without Charity it doesn’t matter what gift of the Spirit one has it's worthless.
Charity or Love | Learn The Bible
defines biblical charity as
“Charity specifically refers to the love that we have toward other men.”
“Charity is the love toward others that suffers long with them and is kind (1 Corinthians 13:4), that does not behave unseemly, seek to get its own way, or is easily provoked (1 Corinthians 13:5); that rejoices not in the iniquity of others (1 Corinthians 13:6); that bears, believes, hopes, and endures (1 Corinthians 13:7).”
So to answer your question, how do Catholics know that they are filled with the Holy Spirit? By the charity in themselves, each other and the Catholic Church in her teachings.