在景颇、傈僳族中流行过的“实物信”，利用树叶表达感情，传递信息，每种树叶都代表不同的含义。如男子用两片嫩叶加上蜂蜜等物，表达对女子的喜爱；女方有意则顺赠草烟、芦子等，如表示拒绝则把两片树叶翻成背靠背送还男方。住地相距较远的亲人如收到一条二指宽的剥皮牛肉就 In Jingpo, Lisu popular in the “physical letter”, the use of leaves to express feelings and convey information, each leaf represents different meanings. Such as men with two pieces of honey with honey and other objects to express their love of the woman; the woman intends to Shun grass smoke, such as ramets, such as denying the two leaves turned back to back turned back to the man. Relatives living far apart received a two-finger wide skinned beef