Customize - Discussion Options
Talk to your audience not at them! One of the secrets for becoming a popular blogger is to establish a good relation and create contact with your audience. Therefore it may be a good idea if you allow your readers to comment on your post.
Uoptin this option by open the Customizer. Just hover over your blog’s name in the admin bar and click Customize. Once it loads, look for the Discussion Options:
Optin "Enable Comments" and save! Boom, start talking!