New characters will have the chance to take a brief tour of some of The Expanse's features after they first login after creating the character. You may end the tour at any time by clicking on Close. You will be teleported back to New Haven near the center of town, regardless if you complete the tour or not.
Should you have any questions about something you saw on the tour, you may contact a GM in-game, locate the page here on the website that has more detailed information about it, or check the forums.
(Thumbnail caption: The Tour Guide window for all new players.)