This chapter is all about Language Barrier. As an Indonesian studying abroad, we tend to be too comfortable with our own language. Ergo, when we see a fellow Indonesian, we'll start talking in Indonesian unconsciously (even when those non-indonesians are still around, oops.) 

This chapter is all about being a cheapskate (really). Living abroad as a student, might turn us (maybe just us) into a cheapskate. We favour something free more than anything else, like in this case, even refill-able drinks. Cause we wanted to save as much money as possible... or maybe we're just broke.