She thinks it's a date, you think you're just friends. You think you're going home with her, she thinks she's going home alone. Men and women don't usually operate in the same universe let alone think alike. That's why it's a good idea to find out where she stands in the vast lover-girlfriend-friend spectrum or you'll risk some awkward and embarrassing situations. The key is to assume nothing and act the fool. Rather than assuming she's going home with you, ask open-ended questions like, 'what would you like to do next?' to gauge her interest.