Astronaut
You must be fit and healthy, study hard at science, engineering or mathematics, also get flight training if you want to be a pilot.
Also learn a language too – space is international!
Space Hotels
Paying customers can share the experience too, if they can afford the ticket!
The firm Bigelow Aerospace plans to build inflatable spacehotels – Genesis II is a test version, in orbit since 2007. The first Bigelow Space Hotel could be ready by 2015.
More information about Space Hotel:
http://www.bigelowaerospace.com/genesis-2.php
Click here for Genesis II (Space Hotel) – visible passes;
http://www.heavens-above.com/PassSummary.aspx?satid=31789&lat=52.03158&lng=-0.75308&loc=Milton+Keynes&alt=0&tz=GMT