Haha, I just got out my UK pounds I still have left from my last trip. The coins should be easy to tell apart. They're all different sizes and thickness. The 20p and 50p coins have sort of angled edges (not sure how to describe it -- they're not perfectly round).
The notes don't only have different sizes, they also have kind of a silvery spot that has a different texture than the rest of the bill. These spots are in different places for the different bills, so I'd like to say a blind person could easily tell them apart not just by size but also by these spots. The 5 pound bill has it more to the left than the 10 pound bill, and the 20 pound bill has two of them even further to the right. For sighted people, these spots look silvery with a fancy, holographic number in them. :-)
Since I'm not American, I can't really help on all the other questions, but I've been to the UK a lot (my best friend lives there) and probably know quite a few things about how life over there works.
Big thing probably for Foggy and Matt to get used to is the driving on the left. That also means people often walk on the left side of the pavement, or step to the left to avoid you. I can see how that could lead to a few near collisions for Matt.
If you ride an escalator, particularly the London Tube, you need to stand on the right so that the people in a rush can pass on the left. Blocking the escalator because you're standing next to each other and don't leave room is NOT COOL and will be frowned upon.
Re: Thoughts on the UK?
The notes don't only have different sizes, they also have kind of a silvery spot that has a different texture than the rest of the bill. These spots are in different places for the different bills, so I'd like to say a blind person could easily tell them apart not just by size but also by these spots. The 5 pound bill has it more to the left than the 10 pound bill, and the 20 pound bill has two of them even further to the right. For sighted people, these spots look silvery with a fancy, holographic number in them. :-)
Since I'm not American, I can't really help on all the other questions, but I've been to the UK a lot (my best friend lives there) and probably know quite a few things about how life over there works.
Big thing probably for Foggy and Matt to get used to is the driving on the left. That also means people often walk on the left side of the pavement, or step to the left to avoid you. I can see how that could lead to a few near collisions for Matt.
If you ride an escalator, particularly the London Tube, you need to stand on the right so that the people in a rush can pass on the left. Blocking the escalator because you're standing next to each other and don't leave room is NOT COOL and will be frowned upon.