What are the signs when some boy you dont know to well likes you?
From my personal experience, girls have a very developed 6th sense when it comes to this xDD Anyway. Seriously now, it can be anything. From bumping into you on the hallway more than he normally would if not interested, to trying to talk to you over normally meaningless topics, and so on. However, be careful. Usually this kind of attraction (from the boy) is not determined by a solid knowledge and respect towards what you (the girl) really are like. But instead, it is more similar to “love at first sight”. It is >you< who knows, and can decide if that boy deserves your attention, if he conforms with your mental image of the kind of guy you'd like to be in a relationship with. I suggest you listen to your common sense before saying either yes or no to him.