Ratings are another way for you to find the best possible places nearby for that hot date, dim sum dinner, or spa extravaganza. When you visit a place page at foursquare.com, you’ll notice a new number on the right-hand side – an out-of-10 rating to help you identify which places are great, and those that could be better. You’ll also see a more humanized version, like:

People like this place.
People have mixed feelings about this place.
People don’t really like this place.

A place’s rating is based on a number of signals that we’ve gathered from our social data mines, likes and dislikes, and from positive and negative tips. Not all pages will have ratings – sometimes this is because of the type of place, and other times, we haven’t gathered enough information to give you an educated rating just yet. And when you like a page or leave a tip, you won't see the score change automatically, as it's based on a number of different signals. 

To 'like' a page via the web, click the small heart/broken heart symbol on the top right of the screen. On your device, select the heart/broken heart when on the listing page. 

Pro tip: Remember, the more likes/dislikes you make, the better your Explore results will be! #Winning.