dress for your profession. I work in a library so I see the librarians dressed up all the time, however. I'm a page, and it doesn't matter if I come in dressed up or in pajamas (you get the idea, I hope)...like I said, dress for the profession, if I were you, since you work at gap, you should wear gap things..probably doesn't matter what though..
I work in retail and I always notice what other girls wear when I go to another store. It wouldn't deter me from going in there but it would deter me from asking for any specific help. I am flattered when people ask for my help and my opinion, that means they think I have good taste in fashion