Both the Finnish and Swedish speakers tend to learn the other language, at least at an elementary level, as well as English. English is the most common second language in the country and many people are fluent English speakers. Even among recent immigrants to the country, few learn Finnish, but rather live in the country only speaking their native tongue as well as English.
Religion
Most of the Finns are Lutheran, although a small minority of Orthodox Russians exist. There is also a growing number of atheists or people that do not attach themselves to any particular religion.
Lutheranism is a protestant religion that was founded by and named after Martin Luther, who led the Protestant Reformation. Like all Christian and protestant faiths, Lutherans believe there is one God and that His son, Jesus is the savior and forgiver of sins. Lutherans also believe that the Bible, which includes the Old and New Testaments, is the only true word of God. It is generally in the interpretation of the Bible that protestant religions vary and this is true in the case of Lutheranism, which tends to interpret the Bible quite differently from Catholicism, which was the religion Lutheranism separated from.