In Thailand, hugging is generally considered a private gesture and should be avoided in public, especially between people of the opposite sex who are not closely related. Thai culture is deeply rooted in "modesty" and "face," and excessive physical contact in public places like streets, malls, or temples is seen as impolite and can make locals feel quite awkward. The traditional greeting is the Wai (palms together at chest level with a slight bow), and you should never attempt to hug a monk, an elder, or a stranger. While younger generations in urban centers like Bangkok are becoming more "Westernized" and might be seen hugging their friends, it is still best for travelers to follow the local lead. If you are visiting someone's home or meeting a Thai host, a warm smile and a polite Wai go much further than a hug. Being mindful of "personal space" and saving affectionate contact for private moments is the best way to show respect for the local culture and avoid causing social discomfort.