Guy: Well, can we work on the project on Tuesday?
Girl: I can't. I'm volunteering at the Free Clinic.
Guy: Oh. What's the Free Clinic?
Girl: It's near campus...they provide all kinds of medical services to people who can't afford it.
Guy: Cool. What do you do there?
Girl: I deal with lab specimens. If you ever need a urinanalysis or a pregnancy test, I'm your girl.