I believe that with someone you don't know, it would be more of an infatuation thing. Almost every girl (and some guys) go through a stage at some point in their life when they are completely "in love" with someone famous or someone that they saw once somewhere and thought was cute. IMHO, to truely love someone, you have to know everything about them and be completely comfortable telling them anything. Even people that you do know, IMHO, the first few months together (sometimes years) are mainly infatuation. Then after the "new" wears off, then you can decide if you love them or not.