Do you have any service to promote? e.g gambling site, ICO project, exchanges, X sites, or some services that require promotions? First, you should have funds to pay for your future participants, and since you're just newcomer on this forum, you should hire some veterans on how your campaign will be managed or you call them as campaign manager and an escrow to store/save your funds so people on this forum will be willing to participate your campaign knowing that you will pay and not to scam them. For some kind of campaigns like social media, signature campaign, etc.
Signature campaign requires signatures like a banner that will describe your service, business, etc. Your campaign participants are wearing this signature at a particular time. Social media campaign for twitter and facebook is like promoting your service at this social platform, obviously.