Our Help Center article has more info on 'Sign in and out of YouTube' which may answer your question: https://goo.gl/WQjBN1
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
Our Help Center article has more info on 'Sign in and out of YouTube' which may answer your question: https://goo.gl/WQjBN1