Hi,
The default comment display that come with theme
Currently you are using Jetpack comment system.
On single posts/single pages you will have “Leave a comment?” option in both the above comment system at the end of article.
On Home page, posts are displayed as excerpts, when reader wants to read full article they will click on read more or Article title which lands them on Single post page which has option to leave comment at the end of article.
If you want you replace “1 comment” with “Leave a comment!” on home page then code that is required to do that has been sent to your email.