You can go to Tik Tok for drainage. For example, if you want to buy whitening products, you can comment on whitening videos, and if you sell slimming videos, you can comment on some interesting and attractive comments, and then beat the rhythm with a trumpet. Then someone will ask you how white and thin you are, and then you will try to get him to add you to WeChat and drain him to your WeChat. This is the best and fastest method I know so far.