There is no surefire way to guarantee that a video will go viral on TikTok or any other platform. However, there are some things that you can try to increase the chances of your content being popular:
Make sure your content is original and engaging.
Use relevant and popular hashtags to help more people discover your content.
Collaborate with other TikTok users, especially those who have a large following.
Post consistently to keep your followers engaged and to attract new ones.
Consider running a challenge or a trend on TikTok to encourage others to participate and share your content.
Keep in mind that going viral is not the only measure of success on TikTok or any other social media platform. It's important to focus on creating content that you enjoy making and that resonates with your audience, rather than trying to chase virality.