“Don’t feel obligated to stay late. Once you’re done with whatever you're working on, you’re free to leave.”
There's a new employee working under you. It's late in the work day, but most people are still working. You explain to the new person that she doesn't have to stay late.
You're starting a business. You need a bank account, so you walk into a bank and say this to an employee who's sitting at the customer service desk.
You have a swimming pool in your yard. The water looks dirty, so you say something to your husband about it.
Someone you work with has come over to your house to visit. You offered him something to drink, and he said that he'd like a coffee. You ask him this to find out if he likes sugar and milk in it.