Well if 당신 aren't sure I'd go with ' I'll think about it' and give him 또는 her a hopeful smile-ish face but if 당신 already did then if he really likes 당신 he will not really be patient and again and again. If 당신 heard rumors 또는 his 또는 her BFF said he was gonna ask u out I would say yes if I were you. Hope I helped!! - PBB ;D
"if i'm able i'll go out with 당신 i would!but i'm afraid my dad will find out and,well, he's a little overprotective. if 당신 really do like me, let's wait until college, okay?"