Funny you should ask. With all the complaints about lack of story, I don't understand why they are so stingy with dialogue. A few lines here and there, adding up to maybe a minute or two, could make all the difference to an audience. I may be all wet. I'll see on the 19th.
In the 1994 revival, they had a finale with a medley of all the songs and Sandy and Rizzo's last scene together had them singing together. I was disappointed that Rizzo left after singing her song and Sandy sang "Look At Me, I'm Sandra Dee" alone.