Hello! According to the traditional culture and local customs I have learned, the three ceremonies in Taihu Lake include the son-in-law's door-to-door ceremony, the wedding ceremony and the incense ceremony. The following is a brief introduction to three gifts according to China's traditional etiquette norms:

1. son-in-law's door-to-door ceremony: it means that after the daughter is engaged, the woman's family invites her in-laws to be guests at home to show their gratitude and recognition. The procedures and details of this ceremony vary from region to region, but usually include welcome, hospitality, farewell and other links, as well as some special gift preparation.

2. Wedding engagement: refers to the ceremony held by men and women before marriage to confirm the marriage relationship and exchange engagement gifts. The procedures and details of ordering a wedding vary from region to region, but usually include offering sacrifices to ancestors, exchanging engagement gifts, drinking engagement wine and so on.

3. Incense ceremony: refers to the newly married couple kowtowing to the incense of the woman's family (that is, the ancestral tablet) on the third day after marriage to express their respect and gratitude to the woman's family. The procedures and details of this ceremony also vary from region to region, but usually include offering incense to the woman's family and offering tea to her elders.

It should be noted that these customs and etiquette may be different for different families and regions, and the specific details and procedures should be determined according to local traditions and consultations between the two parties. If you need more specific advice and guidance, I suggest you consult local traditional culture experts or local wedding service agencies.