Sometimes you need to choose "work normally", I dont know if that will work for those particular scenes. but the "be a toilet" I believe is on page 17 and it's the first scene (please correct me if that's not the one), for that scene you need to work as slutty as possible if I'm remembering correctly.
So hopefully that's helpful, it's basically just 2 tips lol.
1. Try working normally
2. Work as slutty as possible a few times