Drugs are illegal. The Thai drinking age is 20. You are not allowed to purchase alcohol after lunch (11 AM to 2 PM) and during dinner time (5 PM to 12 AM). Drinking alcohol in religious sites, schools, public offices, public parks, gas stations, and pharmacies is not allowed. Respect the monarchy. Cover your Buddha tattoos. Never export a Buddha image or statue without a permit. De-facto marriages are not considered legal. Bringing 120 playing cards is prohibited. Don’t speak any language other than Thai into a microphone.