I am packing for the trip and I have a few questions... just like I did before I went to Bulgaria!  Is it OK to wear white tennis shoes in Seattle?  I am also wondering about t-shirts with writing on them?  What about baseball type hats?  Not so much (on the hats and shorts) when we visited CME in London... and they even speak English there too. I just want to blend in when I want to. Then maybe occasionally do something to embarrass you... or maybe not.  dAd