In Thailand, as in many Asian cultures, certain etiquette concerning feet is very important due to cultural and religious beliefs. The feet are considered the lowest and dirtiest part of the body because they're in contact with the ground and are furthest away from the sacred head. Hence, pointing your feet at anything, especially at someone, is considered extremely rude and an insult. This includes pointing feet accidentally while stretching or sitting down.

Placing feet on the table is another action that is seen as very disrespectful in Thailand. Since the feet are viewed as dirty and lowly, putting them on a table—a place where people eat or place important items—is a sign of disrespect to the place and people around you. This action can be offensive and is not appropriate behavior in a Thai cultural context.

When you are in Thailand, always be mindful to keep your feet on the ground and avoid using them to point at objects, people, or anything religious such as Buddha images, temples, or monks. It's also considered polite to sit with your feet tucked behind you to avoid pointing them at others or sacred objects. Being aware of and respectful toward these customs is a sign of good manners and will help you avoid offending someone unintentionally.