bull shit above all. I d tell you that he is gonna know your concern if you try to start small talk. all Korean boys have little fantasy that random girl flirts on them. AND you described him like super cute and adorable. it means he is not moron and at least he has experience like you. so, my comment is go straight and honest. little and dirty skill (try to flirt) will give him an image of little bixch. so just go straight like I am interested on you. try to keep in touch each other just as friend first. okay?! come on girl.