Paul: Why does Tom and Marry talk only about food?
Miranda: Maybe they don't have better topics?
Paul: How can you even talk so much about food
Olivia: Hahahaha
Olivia: It's true
Olivia: Now when I think of it
Olivia: Maybe it's some kind of a game?
Olivia: In public we talk only about food 
Olivia: And we will see if people notice
Tom and Marry talk only about food in public.