Obviously, it's going to need more than I've got here, but this is what I have so far, and I really want your opinion!
Please keep the restroom fresh.
Cleaning the store can be fun!
The manager can help you with the safe, if necessary.
The manager shouldn't have to prompt you to attend to visitors!
Chat with customers to learn what they're interested in.
Don't take it personally if your manager offers constructive criticism.
Make sure the store is always prepared to receive visitors.
Always remember, there are other stores the customer could have chosen!