Go to Market square and space needle. Market square has lots of places to eat. If you have time, take a ferry across to whidbey Island and ride around there. So many beautiful rides to take in on Peugeot sound. Go to Sequim (pronounced "Skwim"). Buy some fresh dungeoness crab. There's a ton of stuff, great rides, fabulous places to eat etc.
And don't forget Ivar's for fried clams in Seattle
