On the picture I can see a customer, who is standing in a supermarket near the cashier. The man wants to buy some bags and the cashier asks the man what bags does he need. The shop offers the man two choices: paper or plastic bags. But I think that the man isn't sure what bags are better, because plastic bags are bad for environment, but cheap and paper bags are expensive, but not so bad for environment. So the man stands there and thinks, even cashier is getting bored. But cashier is polite, so she doesn't say anything. After a while the man makes a decision to buy paper bags. The woman sells those bags, maybe even for redused price.
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