Fairly strict, and most people stick to themselves
It really depends on the location of the store. I've worked at two in different locations. The first had a extremely terrible and toxic environment. But the last one I worked was such a friendly environment.
Almost all people socialize with their coworkers from the same department. People are usually polite and respectful.
Positive! coworkers are willing to help each other out and switch shifts whenever something important comes up, which made for a great work/social life balance even when working full-time.