I like to add reviews and photos on Google maps. Most of them are photos and reviews of restaurants and business places. I wait for the food in restaurants to click photos. I always take pictures of public places like hospitals and other service providers.
Also i like to add correct names, business hours and correct phone numbers on Google Maps. Made many calls on numbers given on Google maps and corrected them if they are wrong. Many people thanked me for removing their number from incorrect business places. They were getting calls daily and they were tired by saying wrong number.
I like to add reviews to business places, and i realized even if i criticize any of them, the business owner happily accept and tried to improve their services.