The document provides 12 tips for instantly increasing event sign-ups. It recommends allowing online registration and payment, communicating the benefits of attending in event descriptions, sharing pictures and videos from past events, setting early-bird prices with cutoff dates, promoting the event across multiple channels repeatedly, emailing past attendees about new events, setting seating capacities, adding event listings to websites, setting up promotional codes, offering 2-for-1 specials or buy-one-get-one deals, including free gifts with early signups, and promoting events offline as well as online. The overall goal is to streamline the sign-up process, promote FOMO, and drive demand through various incentives and promotions.