Following trends can contribute towards regular engagement as it resonates with the current interest of the users. However, it’s essential to weave authenticity and brand relevance while tailoring content strategies around these trends. A compelling, conversation-starting caption can encourage your audience to connect, comment, and share, thus boosting engagement.

As for video length, there is no one-size-fits-all correlation with engagement levels. The key is in consistent value delivery throughout the video content, compelling storytelling, and attention to audience-specific preferences. Different platforms have unique user habits; for example, TikTok users might engage more with shorter videos, while YouTube viewers might stay longer.

A tool like Flinque can augment your influencer marketing workflow. It allows for detailed audience analytics, creator discovery, campaign planning and ROI measurement, aiding in strategizing and optimizing content for the best engagement.

Remember, success in influencer marketing depends on aligning with your audience’s interests and behaviors, creating valuable content, and employing data-driven strategies. It’s never solely about following trends or adjusting video length, but about the holistic audience connection.