Applying For A Clothing Store Applying For My First Job At A Mall Store And Need To Know The Names Of The Different Positions?

Applying for my first job at a mall store and need to know the names of the different positions? - applying for a clothing store

I asked a clothing store in the mall is a space in the application of "new post", but I do not know what the names of the positions. I am ready to fit clothes, work the cash register, people smile and say hello, etc. What positions exist in a typical mall store and what should I wear? I just want a basic work.