Boost has two steps: buy Boost credits, then apply a credit to the event or influencer profile you want to boost.
The fastest path is to click any in-app Boost button (for example, on an event card, on a profile, or in the dialog shown after publishing a new event). The Boost dialog will offer pack sizes for purchase if you have no credits available, then apply one credit to the entity you selected.
A Boost is active for 7 days from activation, and one credit boosts the entity — including all of its proposals across every brand — for that 7-day window.
If you don't see a Boost button in the app, Boost isn't available on your account yet — the rollout is still in progress, and it will reach you over time.