左手無名指。因為人地話呢隻手指有條血管係連去心臟 gei,所以代表愛。
不過有 d 國家係戴右手無名指。
我係 wikipedia 搵到更詳細 gei 資料,不過係英文,內容大致都係我講個 d :
http://en.wikipedia.org/wiki/Ring_finger
In Western cultures a wedding ring is traditionally worn on the ring finger. According to tradition, the wedding ring is worn on the left ring finger because the vein in the left ring finger, referred to as the vena amoris ( vein of love) was believed to be directly connected to the heart, a symbol of love.
http://en.wikipedia.org/wiki/Wedding_ring
A wedding ring or wedding band consists of precious metal ring, in some countries (USA, UK) worn on the base of the left ring finger – the fourth finger (counting from the thumb) of the left hand. In most other parts of the world, it is worn on the right ring finger (e.g. Bulgaria, Scandinavia, Germany, Poland or Russia)
Such a ring symbolizes marriage: a spouse wears it to indicate a marital commitment to fidelity. The European custom of wearing such a ring has spread widely beyond Europe.