from my experience with some visual novels and animes that are what show us how eastern peoples are they rather show their bonds with acts and not with words or at least not so openly wich i think is better than be saying i love you all the time and being fake if you can go into some animes or visual novels you will see that often the protas rather to protect instead of just talk of their feelings that in case of being a guy and as for girls you could see them cooking, and going into the male houses and doing things that they know would please the males and they put their effort into it because they want prove their love to the other person