Crypto influencers promotion. How it works?

Every promoter/influencer has its services and some of them have packages for big promotions. The most common promotions that the promoters offer are giveaways, retweets, and pinned posts, but some of them might also include in their services things like changing the profile picture of their account, shilling the project in another platform, or being like an ambassador of the project. Of course, you have to be careful with scams, if a promoter has 100,000 followers and only 500 likes and retweets in their posts, the most common thing is that the account is fake.