1. Optimize Your Video Content: 
The most important factor for gaining more subscribers on YouTube is to create quality content that viewers will be interested in. Make sure that your content is relevant and engaging, and that it provides value to your audience. You can also optimize your videos for SEO by optimizing your titles, descriptions, and tags. 

2. Use Eye-Catching Thumbnails: 
Make sure that your thumbnails are eye-catching and stand out from the competition. Use visuals that are relevant to your videos and add text that will draw viewers in. 

3. Post Consistently: 
Create a posting schedule and stick to it. Posting regularly will help you build a loyal following and keep viewers coming back for more. 

4. Promote Across Platforms: 
Promote your YouTube channel on other social media platforms such as Facebook, Twitter, and Instagram. This will help you reach a wider audience and drive more subscribers to your channel. 

5. Collaborate with Other YouTubers: 
Collaborating with other YouTubers is a great way to cross-promote and help each other grow. You can do this by having each other on each other’s channels, hosting giveaways or challenges together, or simply posting about each other’s channels. 

6. Feature Influencers: 
If you can, try to feature influencers in your videos. This will help to draw attention to your channel and increase your subscriber count. 

7. Run Giveaways: 
Giveaways are a great way to attract new viewers and subscribers. Make sure to set clear guidelines and conditions for the giveaway. 

8. Utilize YouTube Cards: 
YouTube cards are small images that you can place inside your videos that link to other videos, websites, or even other YouTube channels. This is a great way to cross-promote and draw attention to other content. 

9. Engage with the Community: 
Make sure to engage with your viewers and reply to comments. This will show that you care about your viewers and will help to build a strong community around your channel. 

10. Ask for Subscribers: 
Don’t be afraid to ask your viewers to subscribe to your channel. This will remind them to come back for more content and will help to increase your subscriber count.