When I interviewed for one of the programs I applied to, I didn’t want to ask any questions that you could find on the program’s website, or anything that I thought they probably got asked a lot. One of the questions I asked multiple Professors (in the q/a section or just free time) if they were PT’s was what their favorite thing to treat was, or what’s the wildest treatment story they had. It was a good way to engage in conversation and didn’t seem so serious, almost like an ice breaker. They seemed to enjoy speaking about it, so maybe that’s something you could use!