To effectively use sweepstakes to get sign-ups, start by promoting an enticing prize that resonates with your target audience. Create a simple entry form that requires minimal information, encouraging more participants. Utilize social media and email marketing to spread the word, emphasizing the benefits of entering. Additionally, consider offering bonus entries for sharing the sweepstakes, which can amplify your reach. By strategically implementing these tactics, you can successfully use sweepstakes to get sign-ups and grow your audience. Remember, the key is to keep the process engaging and straightforward to maximize participation.