How much do Suzy and Clara Mice and men?

Well, Suzy and Clara are not in "Of Mice and Men" because they're probably off having a girls' night out instead of dealing with Lennie and George's drama. So, to answer your question, they don't do anything in that book because they're not even characters. But hey, who wouldn't want to see a spin-off with Suzy and Clara taking on the world?