So today I asked this girl at my work to go out with me. She frowned and kept looking at me. So I kept on saying please, please. She said sure. She asked me if I needed to go anywhere soon. I said I don't know. I hope not. What should I say to her next time I see her? How can I make sure she doesn't change her mind? Where/ when should we go? What should I do? She has a boyfriend. I don't know if this matters or not.