Kaname is worried about never seeing Mary with friends from her class.; Mastushita assumes she has lots of friends.  But what does Mary think?
You've got to use this when 
you play sports. This right here.
Esto, es esto lo que tienes 
que usar en el juego.
Esto, es esto lo que tienes 
que usar en el juego.
É preciso usar isto aqui ao 
jogar esportes. Bem aqui.