Voting System. Give A Thumbs Up

By enabling the review ‘like’ option, it allows your registered customers to upvote a review. If a review has more explanation, if the content reflects the real experience, then your customers may want to like those reviews. And by enabling that option you just give this opportunity to your customers.

Steps: allow the ‘like’ options from the settings panel. Then the feature will be available within the review listing from single product page.