Thai culture places a strong emphasis on politeness, respect and maintaining a calm, friendly atmosphere. Greetings are often accompanied by the wai — palms pressed together with a slight bow — although visitors are not expected to initiate it. Showing respect to elders, monks and authority figures is important, and raising one's voice or displaying irritation is generally discouraged.
The monarchy is deeply respected in Thailand, and the country has strict lèse-majesté laws. Speaking negatively about the King, the royal family or related symbols can lead to serious legal consequences. Visitors should avoid discussing the monarchy in a critical or casual manner in public.
Dress codes are relaxed in most everyday situations, but modest clothing is expected when visiting temples or religious sites. Shoulders and knees should be covered, and shoes must be removed before entering temple buildings or private homes. When sitting, avoid pointing your feet towards people or religious objects, as feet are considered the lowest part of the body.
Tipping is not mandatory, but it is appreciated. In casual eateries, rounding up the bill or leaving small change is common. In mid-range restaurants, many visitors leave 20–50 baht if service is good. Upscale restaurants and hotels may add a 10% service charge; if so, no additional tip is necessary.
Photography is generally welcomed in public areas, markets and tourist attractions, but sensitivity is advised when photographing people. Always ask permission before taking photos of monks, hill-tribe communities or individuals in rural areas. Some temples restrict photography inside sacred halls, so visitors should observe local signs and guidance.
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