Here's how you can post a review and rating of a local business in Google Maps for Android.
1. Make sure you have a Google+ account.
2. Make sure you are signed into Google Maps.
3. Search for the business you want to rate.
4. Scroll down to the Rate and Review section.
5. Tap the number of stars, then write your optional review.
6. Tap on Publish to save your review.
Ratings and Reviews Help Others
While the review is optional, I think it's a great idea. I know that I always like to see what other people are saying about a business before I become a customer.
So, if you have the time, it's very helpful if you leave a review as well as a star rating. Your contribution might encourage someone else to become a customer, or it might help them avoid a bad service or product.
Read more: Google Maps Support