The success of any app lies in its ability to engage users and drive them towards completing the core action. TikTok understood this concept well and differentiated itself from other apps by using the Interest Graph to guide its users. Instead of targeting customers based on assumptions, TikTok leverages the interests and preferences of its users to provide personalized content.

The success of any app lies in its ability to engage users and drive them towards completing the core action. TikTok understood this concept well and differentiated itself from other apps by using the Interest Graph to guide its users. Instead of targeting customers based on assumptions, TikTok leverages the interests and preferences of its users to provide personalized content.

The Interest Graph is the key to TikTok's success. It recognizes that people care more about the things they are interested in rather than just other people. By understanding a user's high-level interests, TikTok is able to curate a feed that is tailored to their preferences. This personalized approach ensures that users are constantly presented with content that resonates with them.

The concept of similarity plays a crucial role in building connections and a sense of belonging. As social psychologist Robert B. Cialdini explains, we naturally gravitate towards people who are similar to us. This similarity can be in terms of opinions, personality traits, background, or lifestyle. By finding people who are similar to us, we feel like we belong and are more likely to engage with the platform. This principle also applies to businesses using Twitter for marketing. By targeting users based on their interests and finding look-alikes of their followers, businesses can create connections and generate affinity.

While social graphs can provide a superficial view of a person's interests, the Interest Graph delves deeper. It focuses on matched interests and generates connections that lead to affinity. As affinity increases, preference and trust follow suit. This is what makes the Interest Graph a valuable tool for both users and businesses.

However, it's important to note that engagement is not just about increasing the number of users. It's about ensuring that users are completing the core action of the app. Without users completing the core action, growth becomes empty calories. Every product has features that motivate the core action, and understanding the relationship between these features and the core action is critical. If people are not completing the core action, the product cannot thrive.

To leverage the power of the Interest Graph and drive engagement, here are three actionable pieces of advice:

1. Understand your users' interests: Take the time to analyze and understand what your users are interested in. Leverage tools and data to identify their high-level interests and preferences. This will allow you to curate personalized experiences that keep users engaged.

2. Foster connections and affinity: Focus on creating connections between users who share similar interests. Provide opportunities for users to engage with each other and build a sense of belonging within your platform. This will increase affinity, preference, and trust, leading to long-term engagement.

3. Prioritize the core action: While user growth is important, it should not be the sole focus. Ensure that users are completing the core action of your app or platform. Identify the features that motivate this action and optimize them to drive user engagement. Remember, growing users who complete the core action is the key to sustainable growth.

In conclusion, the Interest Graph is a powerful tool that drives engagement and personalization. By leveraging users' interests and preferences, platforms like TikTok can curate content that resonates with their users. Building connections, fostering affinity, and prioritizing the core action are essential for driving engagement and long-term growth. By following these actionable advice, businesses can harness the power of the Interest Graph and create mutually beneficial experiences for their users.