[Nyororin]

Perhaps you should try thinking of and treating them like another human being and not special magical "Japanese".
They are an individual. None of us know him. You wouldn`t (hopefully) get online and ask random people how you should act toward a specific person... Individuals are individuals regardless of the country they come from. Any advice you could be given would be nothing more than guesses and general "guy advice".

Personally, if you have trouble thinking of them as just a guy and not a "Japanese guy"... Then I don`t see any hope of a real relationship.