Most travelers in Thailand worry about the words they use, yet the signals that tell you whether you are welcome arrive without a sound. A pause that lasts a beat too long, a smile that stays fixed while the eyes drift elsewhere, or a sudden switch to very short answers can mean a conversation has crossed a line. Thai non-verbal cues are dense, polite, and often deliberately subtle, which makes them easy to miss in a bar, at a dinner table, or during a first meeting with frie