Well, I decided to escalate the situation. We always walk home together with this girl and very often it is dark then. Now she considers me as a friend but I m gonna change that starting from this surprise when we return home under the moonlight and talk about something. I plan to hide something on the road ( flowers or etc) and say her : Just stay here for a moment, I ve got a little surprise for you, close your eyes. And I give her the present. That's how I see it. But I absolutely don't know what to say doing that to shift from friends to lovers and I need your help to choose the right words. And also if you know a better surprise idea or something be free to write it here.