Agree with the post above - take the light rail to Westlake (last stop) and walk down to the Pike pl market, first starbucks and other touristy stuff. Pike place closes around 5, iirc.
Then head back to Westlake and take the 'monorail' to Seattle center and go up the Space Needle for the view, go to the Experience Music project and Science Fiction museum or the Science center if you're into such things.
Then take the monorail back to Westlake and walk over to Triple Door which is a live music venue downtown. Looks like they'll have the 'Atomic Bombshells' that night:
http://www.thetripledoor.net/Calenda...ate=2014-11-22
If you want something wilder, you can check out the bar scene on 10th Ave and Pike/Pine though it mainly caters to the 20something crowd.