what to wear

I just got my first job as a dishwasher at a small cafe, I'm thinking jean shorts (mine are below knee, idk if that changes anything), a short sleeve shirt, and a pair of beat Jordan 4s.

I don't know if any of this matters but I'm kinda nervy and looking for advice and recommendations, I only work 4 days a week for 4 hours, so its gonna be pretty calm, thanks!