You're Not Supposed to Ask People About Their Salary

In the us, it's common for people to introduce everyone. This is always something that i did growing up. But in mexico, where i live now, i find that it's verycommon for people to not really introduce themselves well. And lastly, just a couple of things that you're not supposed to talkabout with people or ask about in social situations. In the us, this would be considered rude to ask some one how much money they make. It's usually even a secret for the children.