Also, by "attitude" and "crap that is common in the US", what exactly do you mean? A few pointers would be a tremendous help...
Lots of things really, I had real issues with peoples attitudes in the US because it really is so different.
Firstly, sucking up is not appreciated here, it will not get you anywhere, if anything it will piss people off and make them doubt your intentions etc.
Backstabbing is not tolerated, if you have a problem with someone, tell them to their face and work it out. If you mention it behind their back to anyone it will likely cause you problems. While I was in the US it seemed everyone was very nice to each others faces but the second someone left the room they would start bitching about them.
I saw huge amounts of dishonesty in the US relating to various things, maybe that is just where I was but again it will not be tolerated here, regardless of your level.
Placing blame on other people is not tolerated. When I was in the US, the chief resident blamed a student for something when he was the one that had screwed up. I got the impression that whoever was most junior got blamed for problems regardless of who was actually to blame, that is not the case here.
Anyone at any level can and will complain about anyone at any level if they feel it is justified. They wont do it just to be nasty but you are not entitled to act like a **** just because you have been there for 30years or whatever.
General rudeness will not be tolerated and you will be brought in to discuss it with higher ups if people dislike your attitude. Basically we are just nicer here and the environment is a lot better.
Just in general, a lot of things that are common in the US would be considered fitness to practice issues in the UK and could potentially lead to GMC intervention.