I would suggest a good way to do this would be to have a group meeting in the Parish Hall and invite gay people. Tell them you just want to talk to them, advertise it as what you called a “sit down and talk”. See who comes. Then have a priest speak with them, and those willing to give up their lifestyle would be welcomed back into the Church. They would go to confession, give up their gay relationships, be able to receive the Holy Eucharist, attend Church etc. The whole community could get involved with the welcoming. You could sing songs, pray with them, become friends etc. What do you think?
I believe it would be best this way, as there would be less confusion as to whether their lifestyle has now become acceptable by the Church. With the Pope’s recent comments being interpreted incorrectly, many in the media, and elsewhere are under the impression the Church has changed its views on homosexuality. I would like to hear him say they are welcomed in the Church, but they must give up their lifestyle, as it goes against Church teaching.
After your encounters with them, will they give up their lifestyle and live chaste lives? Will they go to confession before receiving the Holy Eucharist? Will they stop having sex with their gay partners? Maybe your idea would catch on and many conversions will happen.