I think that choosing clothes based on where you are and what you are doing (sightseeing in a large city, dinner out in a city, sightseeing in a resort town, hiking in the alps...) is most important. That travel vest and shorts might be fine for a hike in the alps, but not in Berlin. Most of us wouldnt wear shorts and a travel vest touring around NY either.
GCEK - looking at your photo, I would think that the last thing people would be worried about would be your shorts :)
During the daytime in cities in July, t-shirts or ladies tops, jeans or khakis and a light jacket are standard, or a simple light summer dress for ladies if the weather is hot. At night, just a bit more dressy. As someone said above, Europeans tend not to wear a lot of bright colours, so go for neutral, earth-tones or black if you want to blend in. In the high summer, quite a few people wear white but it's not so good for traveling.
One thing, though: should you wish to go to the theatre/opera, certainly in the Czech Republic, it is the done thing to dress up a bit, i.e. suit and tie for men/evening dress for women.
I had written about shorts as a giveaway and then scrapped that part of my text in my previous post. I had also been going to say that older women in strappy tops in the city centre of Barcelona were likely to be British (especially in March or April) .
I agree with others, dressing for the context is important. Berin and Barcelona are cities, so sightseeing while being dressed as if for the beach will make you stand out (as tourists). Shorts are for high summer in your neighbourhood for Barcelonans, not for the city centre. And only high summer; wearing white also stops in September, even though it may still be very warm
>GCEK - looking at your photo, I would think that the last thing people would be worried about would be your shorts :)<
Coming from you (and your avatar) Pericoloso, that is extremely rich! :0) Thanks for the laugh.
Pericoloso obviously knows what he is talking about. Are they from the same planet?
Shhhh! We are trying to keep that quiet.
oops, I'm sorry ...
:) I didn't see the avatar, I'm on my intergalactic phone
As for anything goes in Munich or Berlin - if you go to the Englischer Garten in Munich, or Wannsee in Berlin. at the height of summer, it is more a case of 'nothing goes' ...