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• Always communicate your dietary preferences clearly; phrases like 'no fish sauce' or 'no meat' can be helpful.
• It's polite to greet restaurant staff with a smile and a simple 'Sawasdee' (hello).
• When dining in groups, it's common to share dishes, so consider ordering a variety of vegan options for everyone to try.
• Tipping is appreciated but not mandatory; rounding up the bill or leaving small change is a nice gesture.
• Be respectful of local customs and traditions, especially in religious areas where food offerings may be present.
Practical Chiang Mai planning note: Choose by location, dietary needs, hygiene, atmosphere and the time you plan to visit rather than relying on a single "best" list. Menus, opening days and stall locations change, especially at markets and seasonal venues.