> Curious... I always read 'America' when people from USA talks about them.
Not just americans talking about the USA. Most of the world. From Britain to Japan, america is used to denote the US and americans to denote citizens from the US.
> What about the people from the rest of the continent?
North Americans ( for US + Canada ). South Americans for people in south america. There are even Central Americans for everyone in between.
In a geographical sense, mexico is also included when people talk about North Americans ( like NAFTA for example ). But from a cultural or general use, north americans primarily mean americans and canadians.