Subcutaneous veins appear to be bluish, but actually not. It is a visual illusion.pic.twitter.com/Og5G1M5vkf
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
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.