During the Zhou Dynasty, visitors were required to bring gifts, also known as Zhi Zhi (贽). Gifts do not have to be too much, summer is a bunch of dried meat, winter a pheasant; doctor is a goose bird, the Secretary is a lamb, depending on the rank of the person.

The host received Zhi Li, when the guests left, still as much as possible to return, the gift is symbolic, only the courtiers offered to the king, the humble offer to the honored gift is not returned. It can be seen that ancient and modern social intercourse, are inseparable from the content of gift-giving.

Gifts and tuition to teachers are called Zhi Jing. A goose, a packet of dates, the gift is light, sent is the sentiment.

Till today, the first time guests visit, after many years of old friends reunion, always have to symbolically send some "handwritten": a few pounds of fruit, one or two packets of sugar, a box of snacks, is at least to a bunch of flowers, a feather.

Throughout the ages, the tide of people from generation to generation, the spring festival to pay homage or visit friends and relatives, farewell farewell, often deliberately carry gifts to send to express their deep feelings. These gifts with people often used to be called "hand letter".

Cantonese "handwritten letter", that is, people usually go out of the way back to friends and relatives piggyback on the small gifts. Not according to the plan to buy large or expensive goods, but hand-carried, so called "hand letter".

In recent years, the significance of handwritten letters has gradually expanded, tending to the meaning of gifts, but also gave rise to such as handwritten letters of e-commerce station