You should know that the UK is much more than just Scotland and England. There's Wales and Northern Ireland too!!
When entering a train compartment, be sure to shake hands with all other passengers.
London people are very weird, and I think you can catch head lice on their buses.
When visiting a host for dinner or a social call, It may be nice to give your hostess a 3 litre bottle of 'White Lightning', which is a traditional aperitif.
Not much really. We are used to tourists and understand that we have differences.
Remember we queue for things. Pushimg to the front is frowned upon.
We say "Sorry" if we bump into anybody, nomatter whose fault it was.
We say "Thank you" every time cash or goods change hands in a shop.
We rarely talk about politics and almost never about religion.
There's nothing really the rules are fairly relaxed
We are the same as any other Westernised country. On good days we even have electricity.
Keep your mouth shut till you know what you are talking about, keep eyes and ears open, that's how you learn stuff.
Pay attension to the weather
Do not make stupid comments and look right first when crossing a road
Look both ways before crossing the street!! They drive on the other side.
Don't talk loudly in public. We hate that.
