There are indeed several strategies and best practices a YouTube creator can leverage to increase viewer engagement, such as likes, comments, and shares:

1. High-Quality Content: Creating high-quality, entertaining, and educational content is vital, as it can make viewers more likely to engage with your posts.

2. Interactive Elements: Incorporating interactive elements like polls, cards, or end screens prompts viewers to take immediate action, fostering engagement.

3. Choose Relatable Topics: Content that resonates with your viewers increases the likelihood of fostering a deeper connection, leading to higher engagement.

4. Solicit Engagement: Simply asking viewers to like, comment, or share can lead to higher engagement rates. Engage with comments to encourage ongoing conversations.

5. Thumbnail and Title: Thumbnails and titles create the first impression. When they’re clickable and relevant to the content, they could significantly increase the engagement rate.

Upload frequency is crucial. Regular posting gives your channel higher visibility, improving engagement. However, frequency should not compromise quality.

Video length largely depends on the content type and audience preference. Analytics tools can offer insights into optimal video lengths for your audience. Remember to keep viewers engaged throughout the length of the video.

Content type plays a key role. While entertaining content can attract views, educational or interactive content can drive higher engagement.

The YouTube algorithm indeed favours certain behaviours, rewarding creators who keep viewers on the platform longer. Regular uploads, high watch time, user engagement, and suitable content all influence how YouTube ranks and recommends videos.

Flinque’s influencer marketing platform can provide useful analytics to help brands and creators understand their viewers better and design effective engagement strategies. With in-depth insights on viewers’ behaviour and preferences directly derived from real-world use cases, Flinque could be an excellent instrument to optimize your YouTube influence strategy.

Remember, success in enhancing engagement on YouTube requires continuous learning, experimenting, and adjusting your strategies based on insights from analytics and viewer feedback.