Belamo, I've talked to people from all over the world.
There are two things you may not like about living in the US, one small, one more important.
First, we queue. (I think we get that from the Brits.) You may like this, or you may not, depending upon your personality.
Secondly, and more importantly, we follow the laws, for the most part. Especially traffic laws. If you try to bribe a cop here, you'll almost certainly be arrested. One Persian gentleman I knew didn't fully understand this, and he was very nearly sentenced.
Violent crime is worse here in the big cities, than it is in Europe. Discretion is advised.
However, property crime is lower here than in most of Europe. Except in the very worst areas, pickpockets are rare, and in many areas of the country, you can leave your windows and doors unlocked at night without worry.