@gerald - it appears your screenshots are in the admin section for your account. Share the gallery (collection of photos) you would need to go to the public gallery. IF you do not have social sharing clicked off in your admin preferences - then the above example provided would not apply because those links (facebook, twitter, etc) would not appear on your galleries or your photos.
Easiest way to accomplish what you are looking to do (sharing a gallery of photos) is to simply grab the URL from the browser. Example for Gerald would be the following gallery which I grabbed from the browser : Flowers | Photo.net