Observation:
Asians order their food/drinks quietly.
(There’s no need for people to know my business.)

Caucasians order noisily.
(Making your presence known is to gain respect from your surroundings.)

I suppose there’s no correct way of doing things, but I just wanted to point out the different perspectives that people take when it comes to the most mundane practices of every day life. Shows us just another one of those underlying contrasts that make cultures around the world so different.