The option to leave Star Ratings will appear above the comment text field:
Members will type in their comment or review, then select the star rating they want to leave and that will appear immediately on the post:
Once the comment has been submitted the rating will appear on the post, in the position that has been selected in the settings:
The rating will also be shown in the search results page for the post type:
Back inside the post details page, the comments section will allow members and visitors to sort through comments on posts that have received a lot of engagement: