You can start by asking about her day,what she did, who she did things with. As she expresses her thoughts, ask follow-up questions that demonstrate you are listening. For example: If she tells you a story about one of her friends, ask how she felt about the situation or what's she going to do. But the simplest answer is just be yourself, while also focussing on making her feel attracted to you. If you’re feeling nervous it can lead to being overly formal and overly cautious in your approach, which will turn the girl off.