To what someone said earlier about working in a small shop in a rural area, that is much different than what the OP will be going through.
I just looked up Dalton, GA's population (33,000), and that's much bigger than a rural town's customer base as far as people she'll have to deal with. She will be dealing with a customer's on pretty steady basis at a place like the Salvation Army. It will not be the same customers every day.
OP, you don't have to become a family with everyone. You are there to make money. Do your best to be friendly but don't worry about making everyone happy.
Jobs like waiter and cashier are the kiss of death for me. I've been a cashier before and hated every second of it. I've never been a waiter because that's not even worth trying. I'd hate that even more because waiters are expected to be cheery, talk a lot, charming and smile a lot, not my thing.
Working with other people is always a giant pain in the ass. I'm not going to lie. I hate working with people, just absolutely hate it. What really sucks is that we have to work with people if we want to work. There really aren't any jobs that I can find that don't have people that have to be dealt with.
I tried applying for the newspaper 4 times and they never call me back when I do my follow up calls.
All the good jobs are taken in my city. Coming up here in 6 months I'm going to have to start looking for more work besides my flower delivery job (which is only part time) and may end up being a cashier at a fast food joint. Somebody shoot me now. That's how I feel.
I'm ranting again as usual. Whatevs.