Respect and other signs of physical affection. It is uncommon to see very many hand gestures being used in Chinese culture because this is often considered to be excessive. Traditionally, there was not much hand-shaking in Chinese culture. However, this gesture is now widely practiced among men, especially when greeting Westerners or other foreigners. Many Westerners may find Chinese handshakes to be too long or too weak, but this is because a weaker handshake is a gesture of humility and respect. Kowtowing, or kneeling and bowing so deeply that one's forehead is touching the floor, is practiced during worship at temples.
OK (gesture) digits extended, appear in Greece at least as early as the fifth century B.C.E., and can be seen on painted vases as an expression of love, with thumb and forefinger mimicking kissing lips. When proffered by one person toward another in Ancient Greece, the gesture was of one professing their love for another, and the sentiment was conveyed more in the touching of fingertips than in the ring that they formed. As an expression of assent and approval, the gesture can be traced back to first century Rome where the rhetorician Quintilian is recorded as having used it. Quintilian's "chironomy"