The method of tagging Douyin snacks is as follows:

1. Target audience: Determine who your target audience is, such as age group, gender, hobbies, etc. Choose relevant tags based on the characteristics of your target audience to attract their attention.

2. Types of snacks: Consider the types of snacks you promote, such as potato chips, chocolate, candies, nuts, etc. Choose tags related to the type of snack to make it easier for users to find your video.

3. Taste and characteristics: Consider the taste and characteristics of snacks, such as spicy, sweet, sour, healthy food, etc. Choose tags related to tastes and features to attract users with corresponding tastes.