I got a boy to like me oleh being myself but ofcourse being nice, sweet talking him and dressing, um, appropriately for the situation lol, and oleh dropping hints. anda could find out what he likes and see if anda like it too, and talk about it with him. lol at least pretend to be half interested cos boys like talking about the the things they like. Oh, and when youre sitting on your own with him outside make like youre cold and anda have an excuse to hug him to get warm lol ;)
Aside from all that, The definite biggie is being yourself. like a friendlier, flirtier version of yourself, but still staying true to yourself.