Be locally savvy using Twitter. Check out what places around you are tweeting on Twitter, and see if there are any locally relevant hashtags. Using the right one will help tell people exactly what part of town you’re in, especially in big cities, and make you look locally savvy.
You can use the advanced search (https://twitter.com/search-advanced) to search within a specific radius of your location. Look for local businesses, chambers of commerce, or organizations and watch for localized hashtags you can start using.