Picky creators campaigns

Hi everyone! Finally I was able to connect my IG profile to Picky creators but now I have some questions about the campaigns 1. How they work? I mean, you choose the campaign and if you are selected they send you the product? 2. About the cash part you can use it only to buy from Picky or you can use it however you want, for example to buy a book or something else? 3. Are there any campaigns where where you don't have to show your face but only present the product? Thanks in advance for your help Sorry for all the questions but I would like to know how it works and not make any mistake 😅