Thanks to YouTube’s new Top Comments feature, leaving a comment on someone else’s video that gets a lot of thumbs-ups can lead to decent exposure for your YouTube channel. Adelle has done this many times and picks up new subscribers whenever her comments are boosted to be a Top Comment on a popular video. She shares 4 tips about how to leave comments that are more likely to become top comments and how to use your channel icon to entice viewers to check out your channel.