Applied at No Frills for Student Franchise

I have an interview today for a part-time Student Franchise position at No Frills, and I’m feeling pretty nervous about it. This will be my first experience working in retail, so I’m unsure of what to expect during the interview. I’m reaching out to see if anyone has gone through a similar interview process and can share what kind of questions they typically ask. Also, I’m a bit clueless about what to wear; I’m considering jeans, a simple plain top (maybe a bodysuit), a cardigan, and sneakers. Any advice would be greatly appreciated as I really need this job!