You can choose a feature video from any of your uploads, or create a video specifically for this purpose. I recommend doing the latter; it allows you to create a short video (no more than 90 seconds, preferably) to welcome viewers to your channel and explain what you can offer them. This brief clip may not seem like a big deal, but in my experience it can go a long way in getting people to subscribe.
John Lincoln is CEO of Ignite Visibility, one of the top digital marketing agencies in the nation and a 2017, 2018 and 2019 Inc. 5000 company. Lincoln is consistently named one of the top marketing experts in the industry. He has been recipient of the Search Engine Land "Search Marketer of the Year" award, named the #1 SEO consultant in the USA by Clutch.co, most admired CEO and 40 under 40. Lincoln has written two books (The Forecaster Method and Digital Influencer) and made two movies (SEO: The Movie and Social Media Marketing: The Movie) on digital marketing. He is a digital marketing strategy adviser to some of the biggest names in business.