So far I've only been riding in Portugal on this bike (I did a fast 10 countries in 5 days a decade ago on a rental Honda). I live in the USA and only visit Portugal 3-4 times a year for a couple of weeks at a time. My job formalized remote work rules last year and I can now work 90 days a year from anywhere. So this summer I'll work 4 day weeks for July and August and travel across Spain and France. I have to work Pacific time zone so there is some suckage due to that, but it's manageable.
There are several differences between riding in the USA vs. Europe. First is distance, things are just so close together in Europe. Crossing North Dakota east to west is the equivalent of crossing all of Brittan from north to south. When I'm trip planning ND would be a fuel stop only 10-hour slog. Whereas Brittain would obviously be a multi-day sightseeing affair.
As far as the rules of the road: the USA is a win/lose philosophy. I have a green light (I win!) you have a red light (you lose!). Europe is much more about how can we work together to make this ok for each of us (Let's navigate this traffic circle so we both slow down, but both make it through). While this is most apparent in intersections you need to understand the attitude in more subtle situations. In the USA you need to understand that people are not going to give way, they feel like they are losing. In Europe, you need to feel less entitled to command a section of the road. You're all just sharing and trying to get along. There are certainly differences in each country in Europe (in Germany road signs are edicts from god, and in Italy, they are merely light suggestions from some pencil pusher that didn't know better).
And now for Moto Mengy:
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