Indonesian food culture varies dramatically by region — Javanese food is sweet, Sumatran spicy, Balinese ceremonial. "Selamat makan" (enjoy your meal) before eating. Using the right hand to eat is the norm. Belching is not rude — it signals satisfaction.
Tolong — Please, Enak — Delicious, Bon — The bill, Selamat — Cheers, Terima kasih — Thank you